-Bill M Uses two common battery-type tubes from the 1930s-40s. Poste Radio. Medium Waves 1926 One Tube Regen. 01 to $1000. I recently built a 2-tube Doerle using #30 tubes. The Doerle regenerative receiver and Hartley transmitter circuits are considered "classic" glowbug designs. Description: 2 Tube Regenerative Radio - Antique Electronic SupplyThis radio kit will cover the AM radio band along with the SW radio band. As many dials and knobs as possible Secrets of Homebuilt Regenerative Receivers $10.95 $9.95 Sale Price a field-effect version of the famous Doerle and more. What is Regenerative Radio Kit. Generally, any small, home-built tube-type transmitter or receiver may be referred to as a glowbug. The original Doerle Signal Gripper was designed by W.C. Doerle. See details - How To Build the Twinplex Regenerative Receiver How to Build Your First Vacuum Tube Regenerative Receiver by T J Lindsay. Without the padder, the receiver tunes from 730 kHz to 70 followers . It was fun too and it'll whip the pants off of any 3-tube superhet and many 5-tubers. Search: Regenerative Radio Kit. The radio was made in two units, receiver and transmitter. The early Doerle receiver used a #19 dual triode receiving tube, one section of the tube acted as a regenerative detector and the second section of the tube acted as an audio amplifier. Regenerative receivers have a lot going for them. That receiver employed a type 32 tube in the RF Amp section. I came on a two tube regenerative circuit called the "Doerle Globe Trotter". Regenerative Receiver Build similar to a design in the 1934 Official Short Wave Manual Regenerative 19.0 1T4 (2) 80 4-Tube Rgenerative Receiver Breadboard layout. Regenerative 19.0 22(2), 30(2) Old-time radio buffs will be interested in the single tube Doerle super-regenerative shortwave radio. This was a popular MW design scheme down under in the 1920s-30s. Tec 1253 Regen Kit? 1926 One Tube Regen. It was fun too and it'll whip the pants off of any 3-tube superhet and many 5-tubers. Addeddate 2018-03-20 18:32:27 How to Build the Twinplex Regenerative Receiver-SHIPPING INCLUDED! the purpose; but in a small receiver of this price, a condenser made of two pieces of old condenser plates, cut to about 11/4 square inches in area and spaced on the binding-post strip 1/8 4 Doerle Short Wave Sets in. What is Regenerative Radio Kit. Shares: 299. The "Improved" version marketed by Radio Trading Co. used a type 34 tube. As the positive feedback of the stage is increased, at some point the tuned circuit resistance goes negative, massively increasing its Q ( Q = X/R). The most trusted online retailer for trucking equipment and accessories. Classic glowbug designs from that era include the famous twin triode Doerle regenerative receiver and single-tube Hartley, TNT and TPTG transmitters. The logical first choice was to start out with simple regenerative circuits. I can't find the article at the moment. Radio Antigua. Old time radio buffs will be interested in the single tube Doerle super-regenerative shortwave radio. The Time Machine. apart, will serve very well for coupling the R.F. The machine spit out a series of tiny ones and zeros that were then converted into Web pages using a slide rule and a twin triode Doerle regenerative receiver, which had a nice glow but tended to overheat. How to Build the Twinplex Regenerative Receiver In 1934 a fascinating single-tube kit-form shortwave receiver was advertised in radio magazines. 1N5/1A5 Regenerative Shortwave. The majority of glowbug transmitters are designed to be used in the CW radiotelegraphy mode. The audio interstage transformer. One of the tubes is the detector, the others the amplifier. Retro Radios. The receiver required 1.5 volts and 90 VDC and the transmitter required 1.5 volts and 180 VDC. Martin Pike. The super-regenerative receiver is designed to allow maximum regeneration while automatically preventing free oscillation Receiver Frequency: 315 / 433 Receiver Frequency: 315 / 433. Will teach you how to build the 1934 Doerle Twinplex, the 6SL7 Twinplex, and the Solid State Twinplex. Rendered with dyatlov map maker, dynamic receiver data from KiwiSDR. Some of the output of the amplifying device is applied back to its input so as to add to the input signal, increasing the amplification. A topnotch WordPress Get it as soon as Mon, File Size 19 3Secrets of Homebuilt Regenerative Receivers 1 uV (cw regen mode) 1 uV (cw regen mode). Be the first to write a review About this product. The #19 dual triode was quickly used in the same circuit to replace the two type '30 triodes to produce a cheap, simple receiver. High Performance Regenerative Receiver Design, by Charles Kitchin, N1TEV. Power for this receiver is 1.5 V DC for the filaments and 45V DC for the plate current. 6 Solid-State FM Broadcast Receiver 59 7 Doerle Single Tube Super-Regenerative 70 Radio Receiver 8 IC Shortwave Radio Receiver 81 9 80/40 Meter Code Practice Receiver 94 10 WWV 10 MHz Time-Code Receiver 104 11 VHF Public Service Monitor 116 (Action-Band) Receiver Power was supplied via a four pin plug and wired into the transmitter. Shares: 299. Kitchin, Charles. You also get sample circuits and photos from the 1934 Shortwave Manual and very early QST magazines. Old time radio buffs will be interested in the single tube Doerle super-regenerative shortwave radio. The "New-Erly" Doerle Radio Receiver: 197: XV13: May: 2003: The Satellite Crystal Set: 198: XV13: May: 2003: High Q Coils for Crystal Sets Make a Difference? Contents: This small book gives detailed directions on how to build the Twinplex Regenerative shortwave receiver. $10.45. Three windings are required for this regenerative receiver, all wound on Bakelite tube bases. And its a regenerative receiver, plug-in coil to change the bandyou can see how cheap it wasit was just a piece of tin, but it was very, very popular. 1945 3-tube shortwave receiver. energy from the an- tenna to the oscillating circuit of the receiver. No images, good overload performance, good selectivity and they work with AM, DSB and SSB. The little MFJ runs very large rings around it. Classic glowbug designs from that era include the famous twin triode Doerle regenerative receiver and single-tube Hartley, TNT and TPTG transmitters. Generally, any small, home-built tube-type transmitter or receiver may be referred to as a glowbug. Some builders prefer to use mostly vintage parts while others, trying to get "the most" out of the circuit, use modern equivalents. With the padder connected, the receiver tunes from 560 kHz to 750 kHz. The receiver Shortwave Regenerative Receiver (Link). It is stable, the regen controls are not picky, its not at all 6N1/6DJ8 SW Regen Radio On an audio page Regenerative 16.0 6N1P,6DJ8 71 A 1938-1948 Era One Tube Regenerative Receiver From WD4NKA; I like his explanations and construction tips Regenerative 17.0 6SN7 72 Plug-In type single tube radio 0V0 This is interesting because it has switch to toggle between grid detection and plate detection Regenerative May 2005. New (other): Lowest price. GPX AM/FM Shortwave Radio R633B. Likes: 598. The tank circuit plug-in coil has a single winding while the regenerative/detector circuits plug-in coil has two separate windings. "Glow" refers to the glow of the vacuum tubes and "bug" to the gear's relatively diminutive size. (Missing from this list is another one in QST, where he shows a crystal controlled regen receiver, intended for receiving code practice. Topics Regenerative Receivers, ARRL Collection folkscanomy_hamradio; folkscanomy; additional_collections Language English. Date: Wed, 24 Sep 97 16:45:10 EDT From: jkh@lexis-nexis.com (John Heck) Subject: Re: Regen Plans on the Web Folks, If you would order the "1934 Shortwave Manual" from Lindsay Publishing(and I think AES carries it) you would have all the regen plans and schematics that you could ever hope to build. Receiver consists of a regenerative rf stage, TR1, followed by a two of three-stage audio amplifier, TR2 to TR4. 1 X DIY Kit Super Regenerative FM Tube Radio Circuit FM Receiver Module 88MHz-108MHz. Old time radio buffs will be interested in the single tube Doerle super-regenerative shortwave radio. And one of my recent restoration projects was a 1933 Seibt Roland 23L regen set with 3 tubes. It was called the Doerle Twinplex because it used the brand new 19 vacuum tube which contained two triodes in one glass envelope. About Regenerative Receiver Schematic Super . High Performance Regenerative Receiver ARRL by Charles Kitchin. QRPGuys K8TND Regenerative Receiver bare board - $10. I did manage to find a kit online that looks close to what I want - it's called the Radio Ace kit. The receiver was subjected to several air-tests, using a variety of antennas, ranging from a 132ft long wire to a multi-element rotary beam. The number of turns required for each coil can be found in the "HOW TO BUILD 4 DOERLE SHORT WAVE SETS" book. Many radio enthusiasts still build Doerle regenerative receivers. 6 Solid-State FM Broadcast Receiver 59 7 Doerle Single Tube Super-Regenerative 70 Radio Receiver 8 IC Shortwave Radio Receiver 81 9 80/40 Meter Code Practice Receiver 94 10 WWV 10 MHz Time-Code Receiver 104 11 VHF Public Service Monitor 116 (Action-Band) Receiver Fall 1995, pp 7-26. A regenerative circuit is an amplifier circuit that employs positive feedback (also known as regeneration or reaction). This is a first-time post here. - Homebrew 3-Tube Regen Receiver - Sold March 21, 2012 by Ron Potter - $135.00 - Homebrew Doerle Receiver - Sold October 24, 2009 - $125.00 - Homebrew Haynes Regenerative Receiver - Sold June 28, 2007 - $100.00 - Homebrew Hiker's Shortwave - Sold August 30, 2006 - $140.00 Regenerative receivers ("regens") are a simple way to achieve high gain and reasonable selectivity in a single stage. I recently built a 2-tube Doerle using #30 tubes. Will teach you how to build the 1934 Doerle Twinplex, the 6SL7 Twinplex, and the Solid State Twinplex. The Doerle sets, designed by radio fan Walter C. Doerle of Oakland, CA, were a popular regener This book was published by Radio magazine in 1934(obviously) and Paraset. A few weeks ago I started work on building a one tube regenerative receiver based on a circuit described in an old book called "The Boy's First Book of Radio and Electronics". My plan is to create tube base converter which will adapt the 4 pin to a 7 pin socket for the 1T4. Doerle 3-Tube "Signal Gripper" Home-Made RF Choke: Doerle 3-Tube "Signal Gripper" Home-Made Choke in progress: 80 Meter Heterodyne receiver (click photo areas for details) "Rocky" Regenerative Receiver: 1934 Doerle TwinPlex Receiver with Krinkle Finish (Schematic - GIF - PDF) DXer, 2 Tube Regen SW Receiver Iron Pyrites Negative Resistance Oscillator On Q Various Notes on the Variometer Dxer, Two Tube Regenerative SW Receiver The Peebles Choice By Mike Peebles A couple of issues ago, we made a nice little two tube audio amplifier. Doerle Regen Receiver Tube Conversion. It too was fun. The "Mono-Coil 2" Regenerative Receiver: Schematic missing but figure-outable. Introduced at OzarkCon 2014, this kit was designed in homage to simple beginners regenerative receivers of a generation ago. It was called the Doerle Twinplex because it used the brand new 19 vacuum tube which contained two triodes in one glass envelope. 00: original in very good condition: $20. Doerle perfected this receiver design in 1933 when the new #19 tube became readily available. To make up the difference, an additional 150 pf is placed in parallel across the bandset tuning capacitor as shown in the photo. Back then, in 2007, we wrote the Bulletin on giant pieces of fabric and fed them into a vacuum-tube powered mimeograph machine. had been eaten by mice, as Old time radio buffs will be interested in the single tube Doerle super-regenerative shortwave radio. A D cell and five 9V transistor batteries wired in series will work to power this radio. One example is the Schmitt trigger (which is also known as a regenerative comparator), but the most common use of the term is Medium-Wave FET Regenerative Receiver. Like most projects, this one went through several iterations. June 2005. This is a replica of a WWII spy radio receiver and transmitter. Transistor Radio. Interesting coil design with swith. Regen radio receivers. Alfred P. Morgan Regenerative Receiver. 95 Compare Club Car IQ Regen High Torque, Long Stack Motor - 10 Spline $1,209. Chapter 8,If you are interested in a portable shortwave receiver that you could take on a camping trip, A SIDs receiver can be used to determine when radio signals and/or propagation is disturbed by solar storms. Simple HF Regenerative Receiver. Search: Regenerative Radio Kit. This receiver used a pair of type 230 tubes, one as a regenerative detector, the other as a single stage of audio amplification. One of the more popular shortwave receivers at the time was the "Doerle" two tube circuit. Regenerative receivers are very sensitive to hum in the B+ supply and failure to use batteries can result in hum problems. QEX Sep/Oct 00. 3. Chapter 6: Solid-State FM Broadcast Receiver Chapter 7: Doerle Single Tube Super-Regenerative Radio Receiver Chapter 8: IC Shortwave Radio Receiver Chapter 9: 80/40 Meter Code Practice Receiver Chapter 10: WWV 10 MHz "Time-Code" Receiver Chapter 11: VHF Public Service Monitor (Action-Band) Receiver Likes: 598. I had first encountered this book when I was a teenager. Still looking for a one tube regenerative receiver I can build for myself. And one of my recent restoration projects was a 1933 Seibt Roland 23L regen set with 3 tubes. W1UJR: No, not the lace things that go under glass vases, they are doilies,:-) rather this is a very early regen receiver designed by radio fan Walter C. Doerle of Oakland, CA, the Doerle sets were a popular regenerative receiver design of the 1930s. They can also receive FM subject to the normal lmitations of slope detection but consider that in a regenerative receiver you can adjust the slope! Packed with the trends, news & links you need to be smart, informed, and ahead of the curve. Back to the topic. 3-8 Mc/s, about 6-7 watts RF out. "Regenerative Receivers: Past And Present", Communications Quarterly. It is made of an oscillator (T2 and T3) that is synchronized with the received. -Bill M The AV7705 costs US $2,200 from Amazon with free shipping. Richard Clem. reasons that regenerative receivers went out of favor about the time ham activity was moving to 14MHz and higher. Years ago I found a wrecked old homebrew radio in a neighbor's trash. A Medium-Wave FET Regenerative Receiver September 13, 2009. July 2005. The article included detailed schematics for precisely how to build your own inexpensive "amateur sleuth" radio receiver, which used a 2-tube regenerative circuit made popular by Doerle in the early 1930s. 131,767. One is the 1054 4-band Shortwave Regenerative Receiver and the other is the 1056 any band CW/SSB Direct Conversion Receiver. old regenerative receiver, amazing performance. 1T4 (2) 80 4-Tube Rgenerative Receiver Breadboard layout. Regenerative 19.0 22(2), 30(2) 81 ST tube 3 sphere radio [Translated from Japanese] Again, very clean construction The Ultimate Regenerative Receiver From a design in Electric Radio Magazine Regenerative 27.0 6SQ7(3) 100 Regnerative Short-Wave Receiver Schematic only. Regenerative 30.0 6SK7(2),6J5,6H6 101 Double Twin Triode Regenerative Dave, NM0S is a great kit designer, and all the 4sqrp guys are great people to talk to. It. Regenerative receivers are very sensitive to hum in the B+ supply and failure to use batteries can result in hum problems. The set would operate with either 90 or 135 volt "B" battery. Steampunk Furniture. The receiver covered 15 to 200 meters with plug-in coils. and he wrote an article in Short Wave Craft, describing the Doerle receiver. What you don't get is detailed info on building a particular set. The original Doerle radio receiver was offered as a kit for $3.00. Australian Mystery Set. was a 2-tube (triode) regenerative set. Wartime 3-Tube Regenerative Receiver. There's ample info on the circuits and performance reviews on the Internet. The Super-Regenerative Receiver invented by Edwin Armstrong in 1922 provides simple but effective reception and amplification of modulated radio signals. "Glow" refers to the glow of the vacuum tubes and "bug" to the gear's relatively diminutive size. An illustration of the front of the radio appears on the front cover of our "1934 Shortwave Manual" while the rear of the radio appears on Rock's "Secrets of Homebuilt Regenerative Receivers." Below 10 MHz, superhets were a luxury; they were "nicer", but they couldn't hear much that the best Doerle. Generally, any small, home-built tube-type transmitter or receiver may be referred to as a glowbug. The Synchrodyne project left me with the mechanical framework for a simple broadcast-band receiver. I would like to retrofit a two tube Dorle receiver I built (schematic attached) and replace the Type 30 Triode with 1T4 tubes. It too was fun.