One tube 1t4 radio 13 Lock-in One version has used Marconi (MOV) X17 W17 ZD17 N17 and other DK91, DF91, DAF91 and DL92 (both essentially the RCA 1940 1R5 1T4 1S5 1S4 series used in the BP10). In 1938, QST published a one tube "modern" regen sporting a 6F8G and used transformer coupling between detector and audio stages. The set used a 6U8A dual triode-pentode, with half serving as regenerative detector and the other half AF amplifier. Opens in a new window or tab. However, this receiver architecture is by no means new, but on the contrary one of the first receiver circuits of the past century. This small single tube radio offers a great reception sensitivity. There are no problems with stray capacitance in the headset cord to throw you off while tuning a weak station. [1] The receiver uses a single vacuum tube for both amplification and detection, utilizing positive feedback to both increase the gain from a single vacuum tube and to improve the selectivity of the receiver. C $17. The item is "As described" and Gakken Vacuum Tube Radio Kits. One of each type; 1R5 1T4 1U4 1U5 3S4 3V4. I used a high impedance headset also a vintage era 75 years ago this month, the September 1944 issue of the British publication Practical Wireless carried the plans for this very basic wartime one-tube regenerative receiver. You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on RADIO TUBE SUBSTITUTION LIST CANADIAN GENERAL ELECTRIC COMPANY LIMITED. Radio tubes are valves. The thin glass tube envelope is 19 mm in diameter 1T4; Wave bands; Broadcast only (MW). 1T4*, 1U4* 1C5GT 6X 1AF5 6AU 1AH5, 1AR5, 1S5* 1AH5 This radio kit will cover the AM radio band along with the SW radio band. You will find thousands of tubes or valves with interesting links. This extremely simple and low cost circuit performs surprisingly well with 9 V high tension (HT) rail, and 6. Free circuit diagram. A 2000 ohm headset or an audio amplifier is required. But it came with the dial broken, so it was returned. For example, I have an article with the history of the “foxhole radio” popularized by soldiers in World War 2. tube sub. Retro Antique Vintage Tube Radio sales & service. Top Rated Plus. Buy It Now +C $12. Plug-in coils are used, for [] 2 thoughts on “ 1970 One Tube Superhet ” Daniel May 23, 2018 at 1:35 am. com Pingback: 1938 Miniature UHF Transceiver | OneTubeRadio. I built that radio up to last detail, even bought the type 30 tube ( 1930s vintage vacuum tube). You even can look up receiving tube substitutions 1s6-3b2 tube sub. 1949 : Funkschau 1949, Heft 9. The set employed a 1D8GT dual tube, half of which served as detector, with the other half serving as AF amp, providing about 100 mW of audio to the speaker. In valve/tube nomenclature HT is As an aside: In about 1971, for Christmas, my parents bought me a Heathkit SW77. Pinout as seen from the bottom of the valve. Material; Various materials; One Tube Radio Kit 28-100 Kit Radio Shack Tandy, Realistic, Micronta; USA, build 1965 ??, 1 pictures, 1 schematics, 1 tubes, United States of America. He is shown operating the receiver that he designed and built, based upon a design in an earlier issue of the magazine. We have a great online selection at the lowest prices with Fast & Free shipping on many items! Last one. net Or call us at 253-756-6489 **. 0 V heater. The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 45 mm tall. Obviously, a list such as this could not be too specific, without taking into consideration 1K6 — — — 1T4 — — — The plans for this little one-tube regenerative receiver appeared in Shortwave Craft magazine 80 years ago this month, May 1936. 5 for B battery. 45 1 Antenna Coil L1/L2 amplifiedparts. The radio was set to an empty spot on 1939 One Tube Loudspeaker Receiver. It has a B7G base and was introduced around 1940. This entry was posted in Radio history on April 20, 2016 by The one-tube shortwave receiver shown here appeared in Boys’ Life magazine in October, 1951. 2" x 4. Seventy-five years ago this month, Hugo Gernsback and the other editors of Radio Craft magazine undoubtedly anticipate the popularity of OneTubeRadio. The Brimar version of this American design was introduced in 1949. ” In addition to being designed around the concept of simplicity, the set dealt with parts shortages. org; Model: Sweetheart 31/1 - MILITARY U. Most of this reputation is due to design short cuts that have been implemented over the years. No high voltage required. Join me as we take a look at a project that I constructed. Though they were once very popular among amateurs and professionals alike, they are now thought of as mere play toys instead of legitimate receivers. Rotate the gain control fully clockwise. Inspired by the article and schematic from the book "Radio for the 1945 One Tube Radio. 1T4: First Source (s) Apr. 5 V DC for the filaments and 45V DC for the plate current. It is powered by 12V supply and power consumption may be optimized to allow About the same size as the Emerson 747 but uses standard miniature tubes 1R5, 1T4, 1S5 and 3S4. It was called, The Unicorn, and I built one in the Summer of my 12th year (1973). Good Tested Vacuum Tube Set 1L4 / 1U4 / 1T4, 1R5, 1U5, 3S4 / 3Q4. 5 VDC compact B Battery, this tube radio was one of many attempts for the real carry around private radio that could fit in a pocket. I'll show you how it's cons Hi, this is John, Survivalist2008. T. References: Data-sheet & 1040. You reach this tube or valve page from a search after clicking the "tubes" tab or by clicking a tube on a radio model page. triodes. Direct Conversion: 21. Includes one tested 1T4 tube, and one plastic 7 pin socket. So, i made something like in the 50’s, a regen employing two vacuum tubes 1T4. One thought on “ One Dollar, One Tube Radio, 1935 ” Beda February 3, 2016 at 12:37 am. The set was designed with wartime Seventy years ago this month, the October 1947 issue of Popular Science carried the plans for this simple one-tube receiver mounted on a chassis the size of a matchbox. 06 ST-12 1. It has provision for operating on an external ac supply and can be user Demonstration of a two tube regenerative receiver using a 1T4 regen detector and a 3v4 AF stage. A few weeks ago, I’ve worked with some vacuum tubes for a pre-amplifier circuit, and I really liked the results. Type Substitutes Base Diagram; 1T4: 1L4, 1U4, 1AE4*, 1AF4*, 1AJ4*, 1AM4*, 1T4SF*, 1T4WA: Notes: * - Parallel filaments: It is especially designed for radio frequency amplifier service in compact, light weight, portable equipment. 1 watchers. from France. 6 to 25 MHz, which includes the 80, 40, 30, 20, 17, 15 and 12-m ham bands. All times are UTC . com. If Purchasing More Than One Tube. ** . com, since the December 1942 issue was packed with no less Tube 1T4 or Röhre 1T4 ID429, Vacuum Pentode, Miniatur-7-Pin-Base B7G, USA 1940 and RF/IF-Stage shown. Since this was an AC-DC set, the article cautioned that the screws holding the chassis to the wooden case The 1T4 is a miniature screened pentode for dry battery operation. Our vacuum tubes are built to deliver outstanding performance, reliability, and sound quality. Also, an audio amplifier can be connected without A Mike Peebles "PO-425" two tube regen radio kit. One Tube FM Super Regen Receiver - 12BH7A Tube Radio works with 12V DC. hams to learn radio basics. I thought it was in "Boy's First Book of Radio" by Morgan, but that's not it. This Gadgets item by orient100 has 20 favorites from Etsy shoppers. The rectifier supplies the B+, and the pentode is a regenerative detector. When it comes to one tube radios, they don’t get much simpler than this one, which appeared 80 years ago in the January 1945 issue of Radio Craft. Originally released in 1940, the 1T4 was one of the new generation of miniature B7G base valves that made small portable radios a much more The 1T4 is a miniature screened pentode for dry battery operation. "Build a crystal or one-valve radio set" described first a crystal design on a simple solid baseboard chassis and front panel which had enough room to add the valve and associated components. 1 1T4 Radio Tube V1 amplifiedparts. I also have links to this and this radio, both from 1914. 25V for filament, 18V on plate: 12: 10. RF Amp. V2D 1T4. 48, "Red Hot Radio Returns". I've built both the one valve variometer tuned set, and the three valve regenerative set. That magazine was itself taking a nostalgic look back at the early days of radio Here are some links to web pages with regenerative receiver circuits I find interesting for any one of several reasons General sources on homebrew receivers Dave's Homemade Tube Radios by Dave Schmarder, N2DS. heating voltage 1,5 Regenerative receivers have a long history in radio dating back to the first days of the vacuum tube. 8MHz. Construction and design details are at http://w0vlz. Directly heated cathodes are still familiar circuit elements in ham radio designs, even in 2022. Pin 3 is the screen grid of the 1T4, and pin 6 is the control grid. The 1T4 is a miniature screened pentode for use in battery-powered devices. 1T4 1T5 1T6 1U4 1U5 1U5SF 1V 1V5 1W5 1X2: 1E8 1E5 1B8 1U5 1G4 1D5 1C8 1AU3 1B3GT 1G3GT/1B3GT 1J3GT 1K3GT 1N2 1N2A 1E4 1J5 1AU3 1B3GT Seventy years ago this month, the February 1948 issue of Popular Science showed how to put together this handsome one-tube converter to pull in shortwave signals with a standard broadcast receiver. 4V Heater and with a low HT voltage usually between 45V and 90VDC. Vacuum Tube. FREE Radio Projects. Half the tube was used as a regenerative detector, the other half being an audio amp which would deliver a full two watts to the speaker. Marconi appears to have made the Ever Ready Personal B (1947), or perhaps supplied the chassis with DK91, DF91, DAF91 and DL92 and box fitted by Ever Ready as the internal front panel Do not replace a tube in the right-hand column with one in the left-hand column because this may result in a tube with lesser qualifications being used. Use The PCB for this project is for an AM radio circuit but there’s something a bit different about it Is based on vacuum tubes. com T-1T4_DF91 $ 4. Although very simple in design it is an excellent performer. The single tube, in addition to serving as the detector, had some of its output fed back into the tube to amplify. https://www. I'd like to build a strong performing two tube regenerative set for listening to shortwave. The information for this receiver came from the September 1995 issue of CQ, pg. A D cell and five 9V transistor batteries wired in series will work to power this radio. This valve is probably new & in its original box (NOS new old stock, NIB new in b Do not replace a tube in the right-hand co lumn with one in the left-hand column because this may result in a tube with lesser 01A 12A, 112A lAE4*,1T4* OA2 lAM4 lAF4, lAJ4, 1T4SF, OA3 OA3A, VR7S lAE4*, 1T4* OA3A OA3, VR7S lANS OA4G lAQS 1 RSSF, 1 RS* OAS lARS lAFS, lAHS, lSS* 082 lASS 1 USSF, 1 ONS*, 1US* 083 083A, VR90 lAU2 Demo of my implementation of the 12 VDC 1-tube (12AU7) all band regenerative receiver based on an original Thomas and Kosmos desing This Gadgets item by orient100 has 15 favorites from Etsy shoppers. 32 shipping. 5 volt batteries to supply the B+. 8 t Series circuits not requiring controlled warm-up time. com/watch This is an unopened Electronic Education toy made by Science Fair. The internet is amazing! Ado_PO: One Tube Regenerative Radio: Monday, September 28, 2009 4:11:11 PM The result is a very simple circuit consisting of only one tube and a handful of components that produce amazing results. The tube that was listed as coming with these originally was a type 30 but the socket in this one is a miniature, possibly a 1T4 or similar th This amplifier has the option to use one or two 1T4 preamplifier stages to allow for various level inputs. I never had one, but this basic receiver was ubiquitous in the 1960’s and 1970’s, and many SWL’s got their start with the four-tube receiver. Title: 1T4 Author: General Electric Subject: JA-FP-2000-10-28 Created Date: 10/28/2000 10:16:17 PM The regenerative radio was developed by Edwin H. 2 nd IF/Audio. If anyone wants to change their username contact an admin and There is a very nice schematic diagram of the radio with a parts list, all on one page. It’s a Two Tube Receiver Kit from Antique Electronic Supply, and is available for puchase from Amazon. This entry was posted in Radio history on January 24 The Vacuum Tube. The magazine noted that this simple circuit was one of the most useful pieces of equipment you can build. To Replace Use lAF5 lAR5, lAR5, 185 The plans for this handsome little one-tube receiver appeared 75 years ago this month in the April 1947 issue of Radio News. I made an antique radio, just for old times revival’s sake. It 1T4 Author: Tung-Sol Subject: FP-2003-08-28 Created Date: 8/28/2003 9:53:36 PM A one-tube AM radio transmitter based on the phono oscillator transmitter kit from Antique Electronics Supply http://www. Buy A 1T4 Tube Shortwave Regen Radio Crystal Clear online on Etsy India. one 1T4 RT La Radiotechnique tube neuf en boite NOS & NIB. V2B 1T4 . 0: Picked this little battery-op tube radio up from a flea market for about $5 here in France. It used a dual-triode 12AT7 tube. This one doesn't. The set was simplicity itself, but it boasted a loudspeaker and AC power, so there was no need to mess around with headphones or a B battery. derosnopS. I didnot test this circuit but I think the approach is good and other one tube AM radio's that I built i ONE TUBE AM RADIO Catalog Number 28-100 This tunable AM radio, similar to the very early receivers, is simple in design and easy to build. The 1S5 tube used in our receiver has a directly heated cathode. The frequency range isn’t stated, but it Now we are in a new millenia, and radio is over one hundred years old. The set runs directly from 120 volts AC. or Best Offer +C $7. I've progressively detailed my efforts to build a high quality tube-type AM transmitter, starting with a one tube transmitter. After building it using the 12SA7GT tube I modified it to use one of 3 different output tubes either a 12BE6, 12CS6 or 12SA7GT Below you'll see that I installed a pre-amp daughter-board. It follows the classic one-tube radio design from years ago, but has a modern feature or two. 140 New & Used Radio Tubes Box Lot 3q4 1r5 1s4 1l4 1u5 3s4 50a1 1t4 1v5. This build guide provides instructions for creating a 2-tube regenerative radio, including necessary parts and step-by-step assembly. • Parallel·filament circuits. Obviously, it could be used as an extra receiver, but could also be put to other uses as well. Tested Tube Substitutions for: 1T4 Remote Cutoff RF Pentode. 19 dec. Eighty-five years ago, this young man is making the final tuning adjustments for the one-tube radio he built from plans in the October 1939 issue of Popular Mechanics. V2C 1T4. It runs off household current, using a 12A7 tube, which is a dual tube containing a rectifier and pentode. If you step through each page carefully, you'll come to see my own learning curve. The voltages required were different although. Armstrong and patented in 1914. Reply. The coil of Litz wire on this rod Pentode (5) HF-ZF-Stufe, Regelung / RF-IF-Stage, Controlling / RF-IF Stage, Commande Miniatur-7-Stift B7G / Miniatur-7-Pin-Base B7G than one inch taller and a half inch larger in diameter. Online Radio Resources. The tube socket was used, and salvaged from discarded equipment. 1T4 TUBE SHORTWAVE REGEN RADIO CRYSTAL CLEAR Here's a very nice one tube, handcrafted, vintage style, high-performance shortwave regenerative radio. In the stead thereof, I got for Christmas a one tube TRF radio kit by "Hear All Continents" (HAC). Find top brands, exclusive offers, and unbeatable prices on eBay. The set used a single 1AG4 tube as a superregenerative detector, and used a penlite cell for the filament and two 22. com Pingback: Wartime I made some tests with one 1T4 (DF91) regen, some configurations work, some not However one of my faults in the past was related to the x-tal earpiece. com/BOOKSHELF-ARH/Author-Groups/Osterhoudt/HB-4. Share Share on Facebook 18 TOTAL 1 VOLT RADIO TUBES-1L4 3C4 1R5 1T4 1S4 1S5 3Q4 3S4 from Lot Vintage Radio Tube RCA 1s4 3q4 1s5 9002 12au7 1t4 6cm7 35w4 12ba6 12. These were sold by Lafayette Radio in their 1939 catalog. The Motorola name and dial lettering are incised and painted. Our NOS 1T4 / 3V4 Regenerative Portable have a late 50s style. You will Regenerative Receiver - Regenerix 2018 Description. This can be done here as well with a This is a similar circuit on 49 meters --->Dave's Homemade Shortwave Tube Radio Using The Well Known 1T4 Tube In A Regenerative Circuit The 1t4 tube is a Remote Cutoff Pentode. Posted: Feb Sat 08, 2014 8:31 pm . 1944 British One Tube SW Receiver Eighty years ago this month, the November 1944 issue of Practical Wireless showed how to put together this handsome one-tube receiver for the short waves. This radio utilizes a speaker so you don't need to use headphones. Sidetone RT. This may save you some time! One tube radio: Uses a subminiature tube requiring only 1. This little radio is the distillation of many circuits for one-tube sets that have appeared since Edwin Armstrong invented the regenerative circuit in 1912. What's a good, but reasonably priced tube to build a two tube regenerative set around? I've had a lot of fun with my 1T4 and JFET regen sets. The thin glass tube envelope is 18 mm in diameter and, excluding the B7G base pins, is 47 mm tall. If you like One of these days, I’m going to rebuild it as a more aesthetically pleasing version and actually put it on the air. Some of my earlier articles have shown crystal radios from the early days of radio. 70 sold. Apparently, the valves used are old stock Chinese valves. The concern I have is that if only the first 1T4 tube is selected there still is a connection between the plate of the first 1T4 tube and the grid of the And, as fitting for this site, the magazine featured the one-tube AM radio shown above, which used a 6AL11 dual pentode. According to the text, the circuit “has only one tube but in terms of performance it Unboxing a National Union Radio Corporation 1T4 VT-173 pentode vacuum tube. One feature is the capacitor coupling of the audio output. The internal circuitry was a typical “All American Five” superhet, with a tube lineup of 12SA7, 12SK7, 12SQ7, 50L6, and 35Z5 rectifier. For example, where a 1AM4, 1T4SF, 1T4* 1AM4 1AF4, 1AJ4, 1T4SF, 1T4* 1AN5 1AQ5 1R5SF, 1R5* 1AR5 1AF5, 1AH5, 1S5* 1AS5 1U5SF, 1U5* 1AU3 1AX2 1H2, 1S2A 1B3GT 1AU3, 1G3GT, 1G3GT/1B3GT, 1J3, • Tube F 1T4 or Röhre F1T4 ID64379, Solid-State-Diode, Wires and Power-supply shown. I'm already knee-deep in radio restorations and this one's case is in pretty crappy, incomplete condition - so I want to convert into a little 'color box' amp. The unit quantity is one, and it is a NOS (new old stock) item. One word of caution - with the added amplifier turned up the set picks up EVERYTHING that emits It's a One Tube Regenerative Radio. The Variable Capacitor A (6) piece set of classic radio tubes. As one of the leading tube stores, we offer a vast selection of radio vacuum tubes and amplifier vacuum tubes for sale. There is some doubt whether the vibrator power supply was ever issued as no one has ever seen it, and it is not listed in the reprinted handbook. Do not replace a tube in the right-hand column with one in the left-hand column because this may result in a tube with lesser qualifications being used. I received an e-mail from someone who This is a simple one-valve radio for AM reception from approximately 500kHz to 1. It’s a very simple regenerative circuit using a single 3A4 tube. Regenerative receivers (in German literature also called "Audion") are a very clever way to build receivers with a very small number of active components. The 1T4 tube is located on the top of the radio, so you can 1948: Boy's Own Paper As far as I can find, the first version of Gilbert Davey's one-valver was that published in the February 1948 edition of Boy's Own Paper. Explore the vintage 1943 one-tube receiver, a piece of radio history that revolutionized communication. Save up to 12% when you buy more. Thus, the substitution may be physically impossible in some compact equipment. [2] How it Works This little one-tube short wave receiver appeared in Popular Science 75 years ago this month, April 1940. The instructions to build radio this can be found in MRL HB-4. 05 uF Have one to sell? Sell it yourself. F. tubesandmore. One Tube AM Radio For the electronics enthusiast who would like to build an updated version of a classic Radio Shack P-box kit, I've included schematics, parts information, assembly documentation, and pictures of a completed and tested One Links to more relevant video's are in the textbox. Tube Radio Australia, ! Help to find that old radio you want. Fifty years ago this month, the December 1970 issue of Science and Electronics showed how to make this one tube VLF receiver with a tuning range of 13-28 kHz. have been included with the corresponding radio receiving types. 002 uF C5 . One exception is the television converter tube which being usually a high frequency duo-triode is listed with the H. I’m not aware of any one-tube radio kits, but this one looks intriguing. T his was necessary because most audio sources cannot deliver the One tube radios don’t get much simpler than the one shown here, which appeared in the November 1944 issue of Radio Craft magazine, having been sent in by one Reggie Baker of Miami, Arizona. One version has used Marconi (MOV) X17 W17 ZD17 N17 and other DK91, DF91, DAF91 and DL92 (both essentially the RCA 1940 1R5 1T4 1S5 1S4 series used in the BP10). You’ll have the most interesting Bluetooth speaker with this unit. I This problem would disappear if a vacuum tube with an indirectly heated cathode had been used. com P-C70-A $ 8. Seventy-five years ago this month, the July 1942 issue of Popular Mechanics carried the plans for this simple one-tube regenerative receiver. different makers; Shape; Portable set > 8 inch (also usable without mains) Dimensions (WHD) 110 x 28 x 143 mm The regenerative receiver was popular in the early days of radio because it could deliver so much performance out of a simple circuit. April 1941, carried the plans for this simple one-tube receiver, which covered the broadcast band, as well as the 160 and 80 meter bands. The plans for this handsome one-tube shortwave receiver appeared 85 years ago this month in the April 1934 issue of Short Wave Craft. Midget 1 tube 1T4 radio receiver build by W6JRY in the 50,S. Here is a picture of a new regenerative tube radio I am building that employs one 1T4 Pentode tube for RF application and another 1T4 Pentode tube for AF application. Presently it's a two tube regen, 1T4 for the regen stage followed by Although I much prefer tubes, this one should satisfy those who may want to build and use a more "up-to-date" version. 2024 - Explorează panoul „radio lămpi” creat de Ghita pe Pinterest. Ships from Türkiye. 0 0. KA1GUK Member. Antique Radio Forums Index » Category » Homebrew Radios and Equipment. It should be possible to build it over a weekend and it doesn't require any special tools other than a soldering iron, multimeter 6 thoughts on “ 1944 One Tube VHF Transceiver ” Pingback: 1957 Springfield Enterprises VHF Transceivers | OneTubeRadio. The January 1943 issue of Radio Craft magazine contained the plans for no less than three one tube receivers, the first of which is the unusual looking set shown above, dubbed by the magazine as the “Simplicity 1. For example, where a high heater-to- 1AE4*, 1T4*, 1U4* lAH5, lAR5, 185* 1AF5, lAR5, 185* 1AF4, lAM4, IT4SF, 1AE4*, 1T4* 1 B5 1B5/25S 1B6 1B7G 1B7GT 1B7GT/G 1 B8GT 1BC2 1 BH 2 1BK2 1 BL2 1C3 1C4 Tube 1T4T or Röhre 1T4T ID2815, Vacuum Pentode, Miniatur-7-Pin-Base B7G, USA 1940 and RF/IF-Stage shown. It had been sent in to the magazine by one The three-tube short wave regenerative receiver shown in Figure 2 features 1T4 miniature pentode tubes and more modern components. Learn about the technology and significance of this antique radio artifact. 1T4 vintage vacuum tube & 7 pin socket set radio and audio amplifier access item | eBay This is an add-on accessory set for our vacuum tube kits, than can use an optional 1T4 tube. It uses as 12B8GT tube, a combined triode-pentode. 0: This one-tube radio uses a 1Q5 beam power pentode with a screen potentiometer for regeneration control, just like the one I built in 1950. To get that volume, they 90 volts on the plate of the 1Q5GT tube, whereas the radio probably required only 45 volts. The following should be direct substitutions. blogspot Tube 1R5 or Röhre 1R5 ID428, Pentagrid-Converter (Heptode), Miniatur-7-Pin-Base B7G, USA 1940 and Frequency converter shown. I also have a link to a 1922 newspaper article with details for building one. It uses the best features of many one-tube sets and has features not found on most radios of its type. 5 Volts T ype 30 to 1T4 Vacuum Tube Converter used in the (Audio Frequency) Section: 45. Make a One Tube Radio: *** This is my entry in the Vintage Contest. This is a New Old Stock 1T4 radio pentode valve (equivalent to DF91) designed to run on a low voltage battery "Accumulator" supply with a 1. Net 5pcs RCA NIB JRC 1T4 Vintage Vacuum Radio Electronic Tube NOS CV785 Pentode W17. . The set used a dual 6SL7 Shown here in the September 1934 issue of Radio News is Scout Robert Crockett of Troop 3 of the BSA Siwanoy Council, Pelham, New York. 85 Step by step How to build a One Valve Tube Radio. I've wanted to try building a tube radio for a while, so here's an instructable on how I did it. His circuit uses a single type 30 tube and a handful of other components, all of which can be obtained Explore a wide range of our 1t4 Tube selection. T23 . The set used few parts beyond the 1S4 tube. RareComponents (1119) 96. The set employed a single type 30 tube as its regenerative detector. It is a JRC 1T4 type tube, designed for use in military radio applications. This receiver is a simple one tube regenerative type using minimum parts count and low voltages. Electrical characteristics for this tube can be found here and here. It offers good sensitivity and selectivity and is very portable, powered by two 9-V batteries. 01 uF: C6, C9 1 uF @ 100V C7 . 75" Great retro gift! For anyone that enjoys old time radio as I do, this is a must do project. (one ¾ inch diam. Listed on Sep 16, 2024 Type 1 1A0-1XX Vacuum Electronic Radio TV Tubes Replacement Substitute Table ----- Original Pin for Pin Replacement Substitute Tube Type * = In parallel heater circuits only % = Temporary service only ----- 1A3 DA90 1D13 1A4 1B4 1A4P 1A4 % 1A5 1C5 * 1G4 % 1Q5 * 1A6 1C6 * 1A7 1B7 * 1C7 * DK32 X14 1AB6 1AC6 * DK96 1AC5 1V5 1AC6 1AB6 DK92 X18 Do not replace a tube in the right-hand column with one in the left-hand column because this may result in a tube with lesser qualifications being used. Skip to main content I ordered a vacuum tube for a AM radio build from this seller, the tube was packed professionally and arrived in perfect condition. Tube lineup is the regenerative detector and two audio stages, with both audio stages Do not replace a tube in the right-hand column with one in the left-hand column because this may result in a tube with lesser qualifications being used. Power type and voltage; Dry Batteries / 1,5 & 22,5 Volt; Loudspeaker - For headphones or amp. The tube is suitable for collectors of vintage audio and video equipment. The simple circuit, by S. Requires two T-1T4_DF91 tubes (not included). The results were much improved, and were as they should be Here is a side view of one assembled Type 30 to 1T4 Vacuum Tube Converter. One tube 1T4 regenny : Page 1 of 1 [ 7 posts ] Previous topic | Next topic : Author Message; pentagrid Post subject: One tube 1T4 regenny. So they are putting together a simple one-tube audio amplifier described in the November 1940 issue of Popular Mechanics. Bluetooth and aux inputs added The original battery door was missing but we have fashioned a new one that works/looks great. Vezi mai multe idei despre lămpi, electronice, radio amator. The set ran directly off AC power, with a transformer supplying 120 volts B+, rectified through two silicon diodes, as well as 6 volts for the filament of the single 6AQ5A tube. Marconi appears to have made the Ever Ready Personal B (1947), or perhaps supplied the chassis with DK91, DF91, DAF91 and DL92 and box fitted by Ever Ready as the internal front 1G4 / 1H4 one tube radio. When I read of the contest sponsored by Crosley, the first thing I thought of was tube radios. One Tube Regenerative Radio: Saturday, January 22, 2011 10:36:23 PM: It's been many years since Tandy corporation has put out th one tube radio kit. 3/16/2001 12:33:06 AM Rich (7776:0) In the 1950s there was a book of electronics and radio for interested boys. . Leave a reply. 1s6 1t6 e 2d21w 2d21 5727 1t4 1l4 g 1u4 g 2e5 2g5 1t5 1a5 g 2e30 5812 1t6 1s6 e 2e31 2e32 1u4 1l4 g 2e32 2e31 1t4 g 5910 e 2e35 2e36 iv 6z3 e 2e36 2e35 1v5 1ac5 e 2e41 2e42 1x2b 1h2 g 2e42 2e41 2a3 45 g 2g5 2e5 5930 e 2a3w e 2g21 2g22 2a3w 2a3 g 2g22 2g21 45 g 5930 e 2t4 2af4 2af4b 1967 One Tube CW Transmitter Fifty years ago, the March 1967 issue of Electronics Illustrated carried the plans for this simple 40 meter CW transmitter. com/ . Type 30 to 1T4 Vacuum Tube Converter used in the RF (Radio Frequency) Section: 37. 66. 4" x 1. The circuit was Looking for a Tube not listed? If you can't find it, We'll find it for you! Email us at worldtubecompany @earthlink. While the magazine pointed out that some treated the single-tube design with disdain, but it would pull in an amazing number of DX stations. Van Esen, W2OXD, was built around a 6BE6 pentagrid converter tube, and tuned 6-16 MHz. plate) C3 100 pF C4 . For example, where a 1T4* § May not work in all circuits. Initial tube selection: 1T4/1U4 RF/Regen, 1U5 1st Audio, 3Q4/3S4/3V4 AF output. No model number, just the brand "Radio Reve". Pin 4 on the IT4 is not used. La Radiotechnique. The tube line-up is 1T4 (RF stage), 1R5 One way I use to judge the performance of a an early tube radio with AVC and on most sets you'll notice a lot more variation in loudness due to the poorer variable mu and gain characteristics of the early tubes and the lower Do not replace a tube in the right-hand column with one in the left-hand column because this may result in a tube with lesser qualifications being used. It's a One Tube Regenerative Radio. with minor variations, used in most of the one tube radios shown on this site. This forum does not allow a single user to have more than one username. References: Data-sheet & 1040 Type 1T4 was first introduced in 1940. All parts and tubes are there. You will note that this receiver can use the same coil data as the Jones "1-tube" regen shown in #8 above. Buffer Amplifier. It had been sent in to the magazine by one Philip Dennison of Salina, Kansas, who noted that it In fact, I picked up another two beat up BC-221 derivatives (forgot the numbers) at the last swapfest, one for $5 and one for $7 . https://worldradiohistory. Listen to the Privat 1945 One Tube Radio. This entry was posted in Radio history on December 9, 2020 by clem A (6) piece set of classic radio tubes. There is a switch that switches between having one or two of the stages active. com P-ST7-201MXB $ 0. It was designed for radio reception and is a variable μ RF device. Rocky These young men previously built a one-tube radio, but now they want to enjoy loudspeaker volume. Each dial lies flush against the faceplate, with little recesses on each side of the pointer for your fingers. It provides good general-coverage reception of the short-wave bands from 1. Member: Joined: Feb Sat 08, 2014 6:43 pm Posts: 83 Location: Arvada, CO Hello all, Get the best deals for 1t4 Tube at eBay. The pentode section is used as a regenerative detector, and the triode is pressed into service as a diode, serving as the rectifier. I’ve As you can see my work is never done. One transistor version is here. 0: 6148: 4: Small Battery Receiver 1T4(2) 20: 3-Vacuum Tube Straight Radio: Straight in the sense of stage after stage, I believe. 49 shipping. That sort of style was what I was looking for. Before inserting tube V1, turn the radio on with the volume control. from Turkey. In particular, variable capacitors were hard to Tube Interchangability Reference. It really works! You have to build it as close to the original including the right construction of parts. The cathode is then a separate element with a filament that is just a heater. The magazine recommended putting together one of these simple sets for those just becoming acquainted with the short waves, in order to 1T4 1T4 1T4; Main principle; TRF with regeneration; Wave bands; Short Wave (SW only) Power type and voltage; Dry Batteries / 30/4,5 Volt; Loudspeaker - For headphones or amp. 1948 : Funk-Technik (FT) 1948 #18. AVERAGE PLATE CHARACTERISTICS (Triode Connected) Nostalgia is nothing new, and today, we take a nostalgic look 35 years back at the November-December 1980 issue of Elementary Electronics. 49. 6 Volts. Amplifier works with many tubes like 6DJ8, ECC88, 6922, 12AT7, 12AX7, DAF96, 1T4, etc. youtube. Opens in a new window One tube radio: Uses a subminiature tube requiring only 1. Many one tube regen radios have 45 to 90 volts B+ going through the headset. For example, where a high heater-to- 1AE4*, 1T4*, 1U4* lAH5, lAR5, 1S5* 1AF5, 1 AR5, 1S5* To Replace Use 1 Ai 4 lAM4 lAN5 1 AQ5 lAR5 lAS5 1AU2 1AU3 lAX2 lAY2 lAY2-A 1 B3GT 1 64 1B4G 1 B4P 1 B4T Fifty years ago this month, November 1964, Electronics Illustrated reviewed Allied Radio’s Knight-Kit Star Roamer Receiver. See also 1940 adverts. The receiver tuned the AM broadcast band, amateur bands, or shortwave broadcast with the use of plug-in coils wound on the bases of old octal tubes. The design was by Gilbert Davey from an excellent book 'Fun With Radio'. To prevent damage to equipment, it would be wise to double check with a good tube manual before actually doing a substitution. RADIO Its usefub ness lies in substituting for tube types which have become—- for one reason or another — difficult to get. K. 95 1 7-pin Tube Socket amplifiedparts. 5pcs RCA NIB JRC 1T4 Vintage Vacuum Radio Electronic Tube NOS CV785 Pentode W17. Two converters are required for my project. The details Introducing our latest collection of vacuum tubes, specially designed for a variety of applications including radios, guitar amplifiers, and other audio amplifiers. 1T4 ~ DF91. Free returns. K. This uses the s On this page you will find multiple AM tube transmitters along with their schematic diagrams. Listed on Oct 31, 2024 A (6) piece set of classic radio tubes. Tube lineup is the regenerative detector and two audio stages, with both audio stages transformer coupled. Tube 01A or Röhre 01A ID3654, Triode, vacuum, UX-Base (4 Pins (2 thick, USA 1924, UX) and Universal shown. I Title: 1T4 Author: Brimar Subject: DPo-FP-2006-03-05 Created Date: 3/5/2006 10:50:07 AM One Valve Recievers Subject: Radio Keywords: EBook Created Date: 20060131215716Z Vintage homemade one tube radio that is being sold untested and AS-IS. Shop for handmade, vintage and unique Gadgets items from orient100 online on Etsy Do not replace a tube in the right-hand column with one in the left-hand column because this may result in a tube with lesser qualifications being used. The three-tube short wave regenerative receiver shown in Figure 2 features 1T4 miniature pentode tubes and more modern components. from Radiomuseum. It contains a 1T4 tube. Over a This low-voltage one valve radio circuit uses the 6j1p pentode to operate as a triode. This is a five-tube radio, using tubes of types 1R5, 1S5, 1T4, and 3S4, with a 117Z3 rectifier. C $13. The audio output is fed to an LM386 audio amplifier IC mounted on a board beneath the speaker. New Listing Vintage ARDSLEY "Baby Super" DX-90 Portable 4 tube radio 1R5 1T4 1S5 Japan Crown. 5 VDC D Cell and a 67. I do not have a schematic or wiring diagram for this radio. The late 50s/early 60s ARRL "How to Become a Radio Amateur" featured a two tube regen with a 3 1/2" National type K dial. For example, where a high heater-to- 1AE4*, 1T4*, 1U4* 1 AH5, 1AR5, 1 S5* 1AF5, IAR5, IS5* 1AF4, 1 AM4, IT4SF, 1AE4*, 1T4* 1AM4 1AN5 1AQ5 1AR5 1AS5 1AU2 1AU3 1AX2 lAY2 1B3GT 1B4 IB4G 1 B4P 1B4T The one-piece faceplate is brushed stainless steel. Interest in the Regenerative receiver is still growing, lately thanks to the internet and e-mail groups. This valve was purchased new in 1963 to build a one valve broadcast receiver. 1. 9% positive; Vintage Valve Radio; Valves Radio; Tube Vacuum; Tube Tv; Kt88 Tube; Ecc83 Tube; Jvc Crt; 5751 Tube; Vcr Jvc; Jvc Stereo; Vacuum Tube Amplifier; The young man shown here, presumably a student at a school that starts with N, has earned the respect of both his female and canine companions by putting together this simple one-tube receiver from the July 1948 issue of 1948 One Tube Broadcast Set for Beginners Seventy years ago this month, the duo shown here are working on a one-tube broadcast set shown in the January 1948 issue of Popular Mechanics . Shop now for fast shipping and easy returns! Sixty years ago this month, the January 1959 issue of Popular Electronics showed how to put together this portable one tube FM receiver. Brand New. This is a vintage RCA Victor vacuum tube from October 1953, manufactured in the United States. The 1T4 tube was a gift from a friend, but this tube, and similar battery-operated tubes, can be located and ordered through vendors on the Internet. perf. pdf Tube 1L4 or Röhre 1L4 ID2623, Vacuum Pentode, Miniatur-7-Pin-Base B7G, USA 1940 and RF/IF-Stage shown. 1T4 Ef If Style 2. I was able to buy most of the parts at Lafayette Radio Electronics, Long Island, NY. A Battery is a 1. 2 0. Pull the antenna all the way up turns on the radio. In 1967, the publishers of Electronics Illustrated and Mechanix Illustrated presented this little one-tube receiver in a publication entitled Practical Electronics. According to the accompanying article (which carried no byline), the The 1T4 is a miniature screened pentode for dry battery operation. Sep. Quality restorations of Art Deco, Mid Century and Jet or Atomic Age sets. Sold at Radio Shack 1980's One-Tube AM Radio Kit Electronic Project Kit model 28-100 the seals are still in place and it sounds like all the pieces are there I will not open this because it would depreciate the value there is a crack in the cover (see photos) box is 5. It most closely resembles the Jones "Gainer" shown in the Jones book, "The Radio Amateur Newcomer" mentioned above. The book had a one-tube regen receiver that used a 1G4 or 1H4 triode. 5 V for A battery and 22. can't beat that for really good parts including the covers. 06 ST-12 2. The set employs a 1T4 vacuum tube as an RF amplifier and another 1T4 regenerative detector. Power for this receiver is 1. If you look in the middle of the coil you will see a 1/2 inch ferrite rod. ffym ysqq lnpr bqr nnja hmfou abecsy hndnd oeusmno evvex