One Tube Regenerative Receiver

Looking for regenerative detector? Find out information about regenerative detector. A mains isolating transformer and rectifier was also required, this was built in a separate box to keep interference away from the radio. Children of my generation were quite familiar with tubes, we all knew that tubes were what made radios work and that sometimes tubes "burned out" and had to be replaced. The receiver shown in Figs. So, some eight years later I took a stab at building another regen receiver. Controls are on the front panel while power, ant, gnd, and phone connections are on the rear. As a result this form of radio deserves its place in this summary of the different types of radio available. How to Build the Twinplex Regenerative Receiver-SHIPPING INCLUDED! $10. This reciever uses a 12SN7 dual triode, but any dual triode. Each kit is individually assembled to fit the needs of the radio enthusiast who orders it. If you are considering putting your first receiver together, this one is for you. L1 provides negative mutual inductance between the two tuned circuits to maintain a constant bandwidth of approximately 12KHz across the entire 530 to. The Ozark Patrol is a simple, straightforward kit, designed with beginners in mind. 02 250v caps across each of the 4 legs of the bridge rectifier module. KW7WT's 3-tube Regenerative Receiver: Old 0-V-2 design. Echophone 1-tube Regenerative Receiver T-16 Radio Echophone Radio, Inc. As can be seen in the schematic diagram in figure. I've never built a regen, but the things he puts in his receivers were things I had been thinking about if I'd wanted to build a good regen. 1924 Tube Radio Crosley 52 Regenerative Receiver W 3 Tubes Good C300201a Wcar Ye Ole Pre Wwii Era Receiving 2272 M4 315m4 One Piezo Headphones Radios Rca Radiola. Tube Regenerative Receiver Inspired by an old movie I saw one late night, I thought I'd have a crack at building something with tubes (this was my first tube project). Radio History. R3/C5 are a "grid leak" arrangement that (together. This radio is based on the Moorabbin Receiver. A complete receiver circuit is shown. 12-Volt One-tube Reflex AM-BCB Receiver The signals from the antenna pass through a double-tuned band-pass filter consisting of T1 and T2 tuned by a dual-section variable capacitor. Another fact that people often forget is to build the regenerative detector stage as if you were building a battleship !!! Have you seen the ZL2JJ regenerative receiver ???. One-Tube Regenerative Shortwave Receiver Mike Tuggle, WY3B. for a radio receiver. The circuit is based on a design by EN Bradley for a pocket one-valve receiver, which used a 3A5 (DCC90) valve. A 1920s Style Colpitts Broadcast Receiver by Mike Bittner 27215 Sunnyridge Rd. My goal was to build a recreation of a Thirties era radio, based loosely on the popular "Twinplex" kit. So, what did I name my receiver? The NRQ-62, Bruce Vaughan built 59 regen receivers prior to his Ultimate Regenerative Receiver, #60. It used a single 6C5 metal triode. Knight Ocean Hopper receiver. The sharp-cutoff section is used for the receiver detector, and the beam-power section is the speaker amplifier. 0: 30,33: 62: Hear All Continents (HAC) One-Valve Regenerative: Towards the bottom of the page. Almost simultaneously with the "Radiolina" a cheaper single-tube regenerative receiver "R-1" was produced in which headphones were used. 3 provides regenerative feedback. Transmitter / Receiver Schematics and Parts Lists 1957 ARRL Handbook (34th Edition) Typical Regenerative Receiver Circuits, Page 90; Schematic A One Tube Regenerative Receiver (6U8) Page 113. Secondary winding 12 and capaci- tors C3 and C4 select the received sig- nal while tickler winding 1. Crystal Radio. With the lowest prices online, cheap shipping rates and local collection options, you can make an even bigger saving. The main advantage of the regenerative radio is that a complete receiver could be implemented with a single vacuum tube (using headphones and battery power). Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. True to our name here at OneTubeRadio. In the 2007 1AD contest, I used a one tube radio with low plate voltages. 1924 crosley trirdyn 3r3 regenerative receiver sn:30100 d w/ lots of extras! shortwave two tube regen radio receiver crystal clear vintage 1940's vacuum tube radio regenerative receiver japan antenna rf amplifier for superhet, regen and crystal radio shortwave 12ac6 one tube regen radio receiver crystal clear. This one is a 1929 vintage regenerative receiver built from plans in an old ARRL Handbook. Thus it achieves sensitivity far beyond what only a detector could alone. 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 12 6 & 2-Meter Band Amateur 127 Radio Receiver 13 Active and Passive Aircraft Band 140 Receivers 14 VLF or Very Low. Two TRF amplifiers are used with a Regenerative Detector and two stages of audio amplification. VACUUM TUBE RECEIVERS AND TRANSMITTERS The transmitter described in this chapter uses the most ancient vacuum tube technology I could, while still sounding pretty good on the air. I have built numerous ones,--and the thing you have to keep in mind ,is. The resource is currently listed in dxzone. It is battery powered - as first AC-powered Rogers sets were coming up one year later, the cabinet is from solid mahogany, with a bakelite front panel. A single vacuum tube or a field effect transistor, a battery power supply and a few parts when properly assembled into a regenerative receiver circuit will provide amazing results Nowadays one has the option to home brew a classic vacuum tubes regenerative, one built using bipolar transistors , or a radio built using field effect transistors. Thus it achieves sensitivity far beyond what only a detector could alone. Regenerative Shortwave receiver - The Last of the Mahicans. Well after 53 years I finally have my 4 tube regen set back. 5Mc L2 4t L1 20t tapped at 7 from ground. I really began to learn something about radios and how amplifiers worked when, about age 13, I built the one tube regenerative receiver I will shortly describe. A regenerative detector is much more robust than any dual gate FET mixer, it is very sensitive to weak signals and it will demodulate AM in addition to single side band and Morse code. Unfortunately Mr Kitchin does not seem to understand the. Renaissance of HF DC (Direct Conversion) receivers Part1 Dipl ing. I had been building my 1625 tube radios for a while and I felt it was time to offer a different project. 0: 32,30 (2) 61: A 30's Style 3 Tube Regen Receiver: I like his prototype style; lots of jumpers. The main category is Regenerative Receiver that is about Regenerative Receiver. My start in radio included a crystal radio kit, a small Radio Shack regenerative receiver, and a Heathkit superhet receiver. Then he built a second one to verify the design, #61. 9V 1A set for decoding circuit use. A 1920s Style Colpitts Broadcast Receiver by Mike Bittner 27215 Sunnyridge Rd. This is a homebrew radio from the 1920s. Page 121 of McMahon's pictorial album Vintage Radio shows a picture of a 1921 Reinartz receiver with the caption, "One of the best for C. Those who like to experiment with transistors will find some useful tips here on using them as regenerative detectors. Children of my generation were quite familiar with tubes, we all knew that tubes were what made radios work and that sometimes tubes "burned out" and had to be replaced. Bakelite book capacitor & tube socket. I have an inexplicable fascination with vacuum tubes (inexplicable because I'm only 34, I didn't grow up with them); I've built a tube based regen of my own design based on the 6AK5, 6C4, and 6AQ5, but it's just as difficult to use as any other regenerative receiver so I'm looking for. The circuit is based on a design by EN Bradley for a pocket one-valve receiver, which used a 3A5 (DCC90) valve. This regenerative radio has a reflex stage that combines an rf amplifier with an af amplifier. Here's the product description: 1 - 30 MHz with band spread tuning. Armstrong conducted a thorough investigation of the principles of operation of the new three-electrode tube that the technological jump took place. It turned out extremely well. It was called the Doerle Twinplex because it used the brand new 19 vacuum tube which contained two triodes in one glass envelope. But, building one of these wonderful radios is a learning experience, and this being my first regenerative receiver, was no exception. It's called the KRC-2. 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". Regenerative Detector. Although I built one from a kit (4-States QRP) as my first electronics project a couple years ago I thought I'd go for the real deal and build a vacuum tube regen receiver. Since there are really two valves in one glass envelope, the set is really a two-valve receiver. Seeking advice on regenerative receiver. "How to build your first vacuum tube regenerative receiver" by T. I have built it after a 1960 Amroh design "UN58" that appeared in the book "Jongens Radio" (Boys' Radio), published by De Muiderkring in the early sixties. The receiver tunes from 5-10 Mhz in the shortwave band and it can pick up foreign and domestic AM broadcast stations with ease. simple regen receiver come to life! In any event, the following stage's load RL on a tuned circuit is often at least the same as and that the regenerative receiver could achieve considerably better. I am getting NO noticible hum in this receiver's audio! :) Aside from the UGH-ly tuning cap and the funky-looking coil form, this is one of my neater-looking projects. FM RADIO HOMEMADE !! AM Radio using 555 timer IC. We always ship orders as quickly as possible, usually within a maximum of 1-2 weeks. Schematic of a regen receiver using one triode. If you are considering putting your first receiver together, this one is for you. The crystal filter can be bypassed by replacing the crystals by an octal jumper plug. Five plug-in coils sold separately increase the coverage from 165 KHz to 35 MHz. Contact Information for Pacific Antenna If you have general questions about anything other than orders or parts, please email us us. 30' of antenna, 80-year-old components (except the grid-leak, which is a cheat, I slipped a modern resistor into the glass tube). In the 30s and 40s regenerative radio receivers were very popular; they are simple to build & give very good results, even for CW and SSB operation. I did get my novice amateur radio license in 1954. 6 megabyte download!). The values of R3 and C3 are arranged so that after oscillation starts the voltage builds up on the emitter due to rectification of the oscillations. A 12-Volt Homebrew Regen By Al Klase One of the perennial favorites among radio construction projects is the one-tube battery-powered regenerative receiver. Hutchinson, who had built it of scrap parts and placed it inside a GI canteen. The main advantage of the regenerative radio is that a complete receiver could be implemented with a single vacuum tube (using headphones and battery power). ELECTRONIC VACUUM TUBE Electronics in the post Apocalypse. Vacuum tubes doesn't go red, so no clue if the issue comes from there or it's just a fuse or what. I have not yet built this receiver, but intend to do so ASAP. radioSPARKS. Regenerative Receiver. Cosmetically this one is in pristine condition. one tube is a # 31 and I believe it is an amplifier tube the other tube I cannot read. Page 1 Page 2 Page 3 Page 4 Page 5 Page 6: One-Tube Radio Can Be Mailed JPG File Page1: Miniature-Tube Set Works On Flashlight Cells JPG Files Page 1 Page 2 Page 3 "Roll Your Own". A regenerative radio receiver is unsurpassed in comparable simplicity, weak signal reception, inherent noise-limiting and agc action and, freedom from overloading and spurious responses. This project came about simply as an improvement to my Improved One Tube Tuner. A signal from the local oscillator running at the same RF frequency is applied to the deflectors. 1950-era one tube regenerative receiver. Its single amplifying tube,. Weekend Project: Aircraft Band Receiver. So that settled it, this little box was going to be a regenerative receiver. Cheap fm receiver module, Buy Quality diy kit directly from China fm receiver Suppliers: DIY Kit Super Regenerative FM Tube Radio Circuit FM Receiver Module 88MHz-108MHz Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return. It was working good and. A simple tube/solid-state hybrid regenerative receiver for the AM broadcast band. Tony Westbrook recently contacted me about a regenerative receiver kit he has designed and produced in the UK. Regenerative Receiver. Find great deals on eBay for regenerative radio and homebrew radio. Power for this receiver is 1. 1-tube regenerative receiver page! This project was my first regenerative radio receiver and one of my favorites as well. The resource is currently listed in dxzone. 10Mc - 15Mc L3 2t L1 11t tapped at 5 from ground. I had a brand new, black powder coat chassis that I had gotten at a hamfest years ago that would serve as the chassis. 1-tube regenerative receiver page! This project was my first regenerative radio receiver and one of my favorites as well. I can't find the article at the moment. 7 MHZ to 17 MHZ. It worked far better than any other solid state design, so I built a portable version for use during my commuting from the Blue Mountains to Sydney on the train. Chassis components of bakelite and aluminum are new. RF Kit Amplifier Build. Regenerative radio receiver book. Runs on 12 Volts AC, you. This raised receiver hitch extension is designed to This raised receiver hitch extension is designed to fit a 2" x 2" receiver tube opening. 30' of antenna, 80-year-old components (except the grid-leak, which is a cheat, I slipped a modern resistor into the glass tube). Seeking advice on regenerative receiver. Crystal Radio. Regenerative: 13. It's called the KRC-2. as the manufacturer of a 1-tube regenerative receiver in that year. receiver technology. While this was working very well, there is one interesting thing to note: When the tube filaments are cold, and hence, no plate current flowing, then the only DC path between B+ and ground is through the regeneration control potentiometer. The famous SW-3, one of the company’s longest-lived products, was an SW-5 minus two audio amplifier tubes – an effort to reduce the receiver’s price during the Great Depression. Introduction. The next item on the list was the regenerative detector. So, what did I name my receiver? The NRQ-62, Bruce Vaughan built 59 regen receivers prior to his Ultimate Regenerative Receiver, #60. I had been building my 1625 tube radios for a while and I felt it was time to offer a different project. One tube regenerative radio. I am now 84 tears young and found and bought a Doerle two tube radio. Controls are on the front panel while power, ant, gnd, and phone connections are on the rear. Low-cost alternatives call mainly for homebrewed radios, and in this sense, the regenerative receiver is the common choice due to its simplicity, low parts count and very acceptable performance. They show more drift than commercial receivers. With WD-12 display tube. A complete receiver circuit is shown. FS: RAL-7 regenerative receiver w/ solid state PS - P/U only near Denver, CO. How to Build the Twinplex Regenerative Receiver-SHIPPING INCLUDED! $10. Then he built a second one to verify the design, #61. Regenerative receivers, by contrast, could often get adequate gain with one tube. L1 provides negative mutual inductance between the two tuned circuits to maintain a constant bandwidth of approximately 12KHz across the entire 530 to. Contact Information for Pacific Antenna If you have general questions about anything other than orders or parts, please email us us. I was a bit turned off at the thought of having to build a 90-250V DC supply (or lots of 9v batteries) just to experiment, so I took a look at the tube data available online. Thus it achieves sensitivity far beyond what only a detector could alone. This is not the regular super-regenerative "poor" performance receiver type! It may look like a nightmare for many people, but it is not. Sometime in 1921, Reinartz went commercial, and McMahon's Radio Collector Guide lists a J. The term radio people use for these sounds is "beats". 1-tube regenerative receiver page! This project was my first regenerative radio receiver and one of my favorites as well. The Audion vacuum tube was invented in 1906 by Lee DeForest. One of these was a regen receiver (Science Fair brand Three Transistor Shortwave Radio (Catalog #28-110)) Great fun to listen to n the summer night - wire in the air and ground hooked to the outdoor faucet. After searching around online, I found a 12AT7 based regen that seemed simple enough to build. The two-tube regenerative receiver shown in Figure 1 is made from old radio parts of the 1930s and features a pair of #30 filament tubes with 3 volts on the filaments and a B+ supply of six 9-volt transistor radio batteries connected in series. It doesn't need an antenna, gives speaker reception of local AM broadcast stations and also receives amateurs talking on the 160 metre band. This receiver looked like the answer to my wishes. 10Mc - 15Mc L3 2t L1 11t tapped at 5 from ground. I have seen similar kit sets in the Allied catalogs of the late 1930s. That was exciting. FA: ALLIED KNIGHT SPAN MASTER TUBE REGENERATIVE SW RECEIVER. If you, have an amateur-band-only receiver, this unit will fill in some of the "holes" in the spectrum. The receiver tunes from 5-10 Mhz in the shortwave band and it can pick up foreign and domestic AM broadcast stations with ease. Get the best deals on Tube Radio Kit when you shop the Vintage UNBUILT Radio Shack Science Fair AM one vacuum tube P-BOX receiver KIT Tube Regenerative. The regenerative RF section of the receiver is shown in figure 1a. A few words may be said about regenerative detectors. super-regenerative receiver designs with two or three integrated circuits that MAY be pretty good, but I haven’t built one, so I’m not convinced. " paper label on back. : It uses a 3S4 vacuum tube and requires a long wire antenna and ground connection to operate. This is your chance to get the crystal radio or regenerative radio kit of your dreams or to present a special, thoughtful, one-of-a-kind gift. This project is a simple one tube regenerative receiver that will receive signals in 3 bands with the following coil windings. True to our name here at OneTubeRadio. For our purposes, the triode vacuum tube will serve as the heart of the regenerative radio receiver. The voltages required were different although. I have built numerous ones,--and the thing you have to keep in mind ,is. If you, have an amateur-band-only receiver, this unit will fill in some of the "holes" in the spectrum. How I built a shortwave Armstrong FET regenerative receiver. and detector tuning ganged. One polarity puts the feedback in phase with the original input signal, and causes Regeneration through Positive Feedback. I've never built a regen, but the things he puts in his receivers were things I had been thinking about if I'd wanted to build a good regen. Michael VE2BVW. The plans for this simple one-tube regenerative shortwave receiver appeared in Popular Science 80 years ago this month, July 1936. Just one or two transistors and maybe a simple audio amplifier using one integrated circuit. I knew that the 12L6 was a nice beam pentode power amplifier tube. Runs on 12 Volts AC, you. Super-regenerative receiver for short range HF band applications 3 1. One of these was a regen receiver (Science Fair brand Three Transistor Shortwave Radio (Catalog #28-110)) Great fun to listen to n the summer night - wire in the air and ground hooked to the outdoor faucet. So this design, getting most gain out of one tube, filled the needs of the growing radio community and immediately thrived. This is a homebrew radio from the 1920s. It turns out that Sir Douglas' clever circuit works well as a one-stage, crystal-controlled (VXO'd) regenerative receiver. Borusewich (an engineer of the Trust of Low-Voltage Factories). Under suitable conditions, it is capable of receiving signals from many foreign countries. camp, he came into the possession of a 1-tube regenerative radio receiver improvised by an officer of the Engineer Corps, Capt. Its single amplifying tube,. Presently working on the cabinet. for a radio receiver. It was working good and. 2-volt cell and uses exclusively 2N3904 transistors. 5 MHz ideal ;). Here is a One Tube Regenerative All Wave Receiver Kit from Modern Radio Labs. FS: RAL-7 regenerative receiver w/ solid state PS - P/U only near Denver, CO. Regenerative and Reflex Receivers This file contributed by Kim Smith and The Radio Electronique. Under suitable conditions, it is capable of receiving signals from many foreign countries. Pick out one of the beats which. 35 meg video 1950s Space Spanner Knight kit Receiver Homebrew version 1950s Space Spanner Knight kit Receiver Homebrew version. Radio Receiver Projects You Can Build. the KI3U radio is usually configured as one form or another of one-tube regenerative receiver, or a self-quenched super-regenerative - vacuum tubes were still expensive items in 1925 and many radio amateurs back then possessed at most two with appreciable life left in them, one for their receiver, the other for their transmitter. This receiver looked like the answer to my wishes. The main category is Regenerative Receiver that is about Regenerative Receiver. The regeneration is set to be under self oscillation. The next series of Soviet radio receivers became really "mass media". 45 How to Build the Twinplex Regenerative Receiver In 1934 a fascinating single-tube kit-form shortwave receiver was advertised in radio magazines. One of my first Home Brew projects was a "junk box"one tube CW 40 meter xmtr. It takes a 5 volt source for the filament and a 45 volt for the plate circuit. Then I switched to a Sony ICF-7600 with ceramic filters in the IF stages. We check every set of boards that we do on our kits. The "One Tube FM Tuner" described in Popular Electronics, August 1960 is about the simplest valve receiver for reception of the 88-108Mc/s FM broadcast band. Each kit is individually assembled to fit the needs of the radio enthusiast who orders it. That was exciting. The kit uses through-hole components, which is to say, mounted on pads etched on the opposite side. If you put the noisy regen on the scope and compare to my circuit- it does not produce as nice a sine wave output. In this pamphlet, along with the instructions to assemble the kit, are a brief history of the vacuum tube, early radio development and notes on Edwin Armstrong and his invention of the regenerative radio receiver. They excel at receiving amplitude modulated signals from below the AM broadcast band up to the higher short-wave bands above which the superregenerative detector becomes the better choice. Receiver made by Signalbau Huth (model E72): This is an example of a cheap receiver made in 1928. The famous SW-3, one of the company’s longest-lived products, was an SW-5 minus two audio amplifier tubes – an effort to reduce the receiver’s price during the Great Depression. There is also an explanation of how the radio works, what the vacuum tube does, and how to operate the radio. As a result this form of radio deserves its place in this summary of the different types of radio available. , which I received from Colin, K7fm, This receiver has > been discussed on boatanchors. Butit was not until Major Edwin H. Regenerative receiver projects Lemon Drops. 7 MHZ and the short wave bands from 6. This was a project that grew out of my fondness for antique radios and vacuum tube technology. Even in spite of this availability of inexpensive gear, there were still printed in handbooks and magazines many one and two tube regen projects. The radio frequency input impedance of the grid leak detector is dominated by the tube's grid input impedance, which can be on the order of 6000 ohms or less for triodes, depending on tube. But the set no longer worked. This link is listed in our web site directory since Monday Nov 1 2004, and till today "WD5HOH Regenerative(Regen) Receiver" has been followed for a total of 8920 times. It will be a while till I get it done. I had been building my 1625 tube radios for a while and I felt it was time to offer a different project. Transistors, either bipolar or JFETs are used in regenerative receivers today. If you use a regenerative tube receiver, antenna switching isn't really necessary, use a separate short wire as RX antenna or couple lightly to the TX tank. I am looking for the plans/schematic published in the early 60s for a one-tube, (12AT7), regenerative transceiver. Download Free: Alfred Morgan Tube Crystal Radio Knight Space Spanner Read E-Book Online at VILLASCONDOSHAWAII. 8% similar) No further testing has been done. Back in the day, Radio had so called P Kits. How to make a 'Two Transistor Medium Wave Radio'. The main category is Regenerative Receiver that is about Regenerative Receiver. In fact, headphones were generally required. Armstrong regenerative detector cir- cuit. This reciever uses a 12SN7 dual triode, but any dual triode. A minimal antenna length would be about 6 feet, 15 feet would be a maximum. particularly a short wave receiver. So I numbered mine #62, partially incorporating his callsign, NR5Q, I dubbed mine the NRQ-62. Regenerative Detector. Radio building as a hobby goes back to the earliest days of radio. Some of the parts I used were rare and unobtainable as new parts. This radio kit will cover the AM radio band along with the SW radio band. Regenerative and Reflex Receivers This file contributed by Kim Smith and The Radio Electronique. "How to build your first vacuum tube regenerative receiver" by T. Unusual cabinet. The author is also a short wave enthusiast and for some time used his family's Philips MW/SW vacuum tube radio. Unfortunately the original receiver is gone and so was the magazine article to use for another attempt at building one. The internet is amazing! Ado_PO: One Tube Regenerative Radio: Monday, September 28, 2009 4:11:11 PM. The famous SW-3, one of the company’s longest-lived products, was an SW-5 minus two audio amplifier tubes – an effort to reduce the receiver’s price during the Great Depression. One tube regenerative radio. This regenerative radio has a reflex stage that combines an rf amplifier with an af amplifier. Page also has schematics for 2,3 and 4 tube receivers One Tube Regenerative Receiver: From Alfred Morgan's. One half of a 6AN8 tube serves as an RF amplifier and the other half as a regenerative receiver. Hutchinson, who had built it of scrap parts and placed it inside a GI canteen. "Ace" was a brand name of the Precision Equipment Company, which Crosley purchased in early 1923, in order to obtain their Armstrong patent. The radio is a regenerative receiver using a combination triode-pentode tube (which is like having two tubes in one, so I guess this is actually a two tube radio?). DIY Kit Super Regenerative FM Tube Radio Circuit Receiver Module 88MHz-108MHz S9 | eBay Skip to main content. Think how jealous you're friends will be when you tell them you got your tube radio kit on AliExpress. The explanation of the Armstrong regens is that the signal is fed back to the grid and re-amplified. For a regenerative receiver to perform well, three basic requirements have to be met. 5 V DC for the filaments and 45V DC for the plate current. "A 1938-1948 Era One Tube Regenerative Receiver" by Gary Johanson, WD4NKA. I printed out the schematic and made it. Circuit Features: As can be seen from the above block diagram, the CM-1 is basically a 4-tube 80 meter single conversion receiver, preceded by a single tube, crystal-controlled converter for the higher frequencies. This simple one chip FM receiver / TV tuner will allow you to receive frequencies from 70 up to 120MHz. 9V 1A set for decoding circuit use. Radio Regenerative One Tube 12AU7 Homemade By PY2FDX Celso Follow. How I built a shortwave Armstrong FET regenerative receiver See more. Regenerative circuit From Wikipedia, the free encyclopedia The regenerative circuit(or self-regenerative circuit) or "autodyne" allows an electronic signal to be amplified many. /help --with 2 simple circuits-- I The receiver is a super-regenerative receiver and needs a strong enough signal. I had first encountered this book when I was a teenager. (see the schematic. One triode of a 12AT7 is the local oscillator, the other is a converter/super-regenerative detector at the I. This one has Telefunken data pages (in German), in PDF format This one has data on European,Russian & American tubes in HTML (German & English) Some more useful info: The entire 1945 Taylor Tube Catalog in PDF format (note, 1. Shortly after inventing the regenerative receiver, Armstrong started working on the superheterodyne receiver which replaced the TRF radios for broadcast receivers around 1930. as the manufacturer of a 1-tube regenerative receiver in that year. Magnetek, Radio Remote Control Products, Transmitters Handheld Style, Transmitters Bellybox Style, receivers, radio drive serial interface, railyard remote controls, material handling, power delivery, overhead crane and hoist, receivers, transmitters. This valve receiver was constructed in 1988 in the traditional way, i. The triode section is used in an Armstrong regenerative detector and the pentode section is used as an audio amplifier. Tuning is accomplished by a 1SV149 hyperabrupt varactor powered by a separate 9-volt supply. The tube is an RCA UX201A. Transistors, either bipolar or JFETs are used in regenerative receivers today. Armstrong applied in 1913 for a patent on the regenerative receiver, one of the most famous radio inventions, maintaining a long. This receiver used only two transis- tors (a 2N107 and a 2N170) and two 1N60 diodes, and was built in a case small enough to be held in the palm of one hand. 5 comments. This particular circuit uses only one single IF coil. Overlord 1-Tube HF Regenerative Receiver After visiting a number of WWII museums in Normandy this summer I was inspired to build a radio receiver with the same technology and design as those used by the spies and the resistance during the French occupation. I was a bit turned off at the thought of having to build a 90-250V DC supply (or lots of 9v batteries) just to experiment, so I took a look at the tube data available online. One Tube Regen Receiver This is a project I saw in an Elementary Electronics magazine back in 1967. The super-regenerative receiver is based upon the regenerative receiver shown in Figure 1, while both depend for their operation upon that property of the audion--the three-element vacuum tube--which enables it to reproduce very faithfully in greatly amplified form any feeble pulse of electrical energy which is fed into it. Reinartz Co. 1924 Tube Radio Crosley 52 Regenerative Receiver W 3 Tubes Good C300201a Wcar Ye Ole Pre Wwii Era Receiving 2272 M4 315m4 One Piezo Headphones Radios Rca Radiola. By Howard Davidson. I suspect it will be quite a challenge to actually make a contact. 5 megaHertz. Regenerative Shortwave receiver - The Last of the Mahicans. In my continuing procrastination in not playing with levelling loops I finally got around to building the FM broadcast receiver from September 2007's Elektor magazine. A 1920s Style Colpitts Broadcast Receiver by Mike Bittner 27215 Sunnyridge Rd. Regenerative receivers have a long history in radio dating back to the first days of the vacuum tube. How To Play 1930s & 1940s music on your Antique Radio. 2 4/5/2016 Page 5 of 47 problem, and we ordered new boards. 8% similar) No further testing has been done. But you may have to act fast as this top tube radio kit is set to become one of the most sought-after best-sellers in no time. Overlord 1-Tube HF Regenerative Receiver After visiting a number of WWII museums in Normandy this summer I was inspired to build a radio receiver with the same technology and design as those used by the spies and the resistance during the French occupation. If you put the noisy regen on the scope and compare to my circuit- it does not produce as nice a sine wave output. We aim to please!. The super-regenerative receiver is based upon the regenerative receiver shown in Figure 1, while both depend for their operation upon that property of the audion--the three-element vacuum tube--which enables it to reproduce very faithfully in greatly amplified form any feeble pulse of electrical energy which is fed into it. Page 121 of McMahon's pictorial album Vintage Radio shows a picture of a 1921 Reinartz receiver with the caption, "One of the best for C. Like most projects, this one went through several iterations. Tube Regenerative Receiver Inspired by an old movie I saw one late night, I thought I'd have a crack at building something with tubes (this was my first tube project). Controls are on the front panel while power, ant, gnd, and phone connections are on the rear.