Shortwave regenerative receiver


5MHz and 6. Five plug-in coils sold separately increase the coverage from 165 KHz to 35 MHz. It works, but it is very noisy Bad S/B National Radio Company introduced the SW-2 "Thrill box" shortwave regenerative receiver in 1927, and later offered improved models, such as the highly  A 40 METER RECEIVER BY THOMAS DUNCUN (2 BD SET). Then he built a second one to verify the design, #61. in the URL: Regenerative: 24. This is a compact three transistor regenerative general coverage receiver with fixed feedback. If your receiver, overall, squeals all the time or does not drop out of regeneration until the regeneration control is turned way down, try removing a turn from L2. 8V 1N4001 6 5 4 3 2 1 C3,C5 are three gang vari It's not an $800 communications receiver, nor a modern portable and it's not even a superhet design. 4 (1. Super regenerative receivers are relatively easy to build. pe INICTEL-UNI Sensitivity and selectivity are issues that will invariably concern a short wave listener when he wishes to purchase a new receiver. Operation was found to be satisfactory with the prototype built on a protoboard and a ground plane fixed underneath. Sep 18, 2012 But have you ever considered whipping up a "regen" receiver? What a ball it can be . Ever since I was a kid huddled in front of an old console radio my grandmother gave me, I've been fascinated with the notion of listening broadcasts originating half-way around the world. None were procured with the thought of preparing a display of regenerative shortwave receivers with plug-in coils. shortwave receiver The 4 controls on a regenerative receiver keep your hands busy. The regenerative circuit remained a favorite design for home-constructed shortwave broadcast radios and amateur receivers throughout the 1930s. There is no official definition of the band, but the range always includes all of the high frequency band (HF), and generally extends from 3–30 MHz (10 to 100 metres); above the medium frequency band (MF), to the end of the HF band. Four tubes low voltage regenerative receiver 3 – 19 MHZ by F5LVG This SW regenerative receiver has only 12 V for B battery. For years I have been interested in building simple receivers, but never had the time. 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. So far received 7 votes for Homebrew Regenerative and Crystal Radios. The completed WBR Receiver (darn those front-panel fingerprints!) – The space left at the top right-hand side of the front panel was in case I found a way to hook up a frequency counter to the regenerative detector while in oscillation in order to provide a frequency readout. The regenerative radio was developed by Edwin H. 8V +6. 3V +6. The single tube, in addition to serving as the detector, had some of its output fed back into the tube to amplify. $13. Jun 29, 2018 A regenerative radio receiver is unsurpassed in comparable simplicity, weak A SHORT WAVE REGENERATIVE RECEIVER PROJECT. Everyone Should Build At Least One Regenerative Radio Receiver 40 thoughts on “ Everyone Should Build At Least One Regenerative Radio Receiver the Radio Shack regen. Regeneration with a difference. W4JBM's Radio Kits Page. , Colin B. 01 µF 150 k 1M 5pF 1N4004 C3c C11 R8 D3 R9 +8. One is the 1054 4-band Shortwave Regenerative Receiver and the other is the 1056 "any band" CW/SSB Direct Conversion Receiver. Designed by amateur radio enthusiast Walter C. This regenerative shortwave receiver is highly sensitive and selective, and it covers the following frequencies: 1. Shortwave radio is what got me interested in this radio stuff in the first place. Steve Yates - AA5TB HOME. Penfold. 1253 Complete T-KIT with Enclosure 74327 Find great deals on eBay for regenerative receiver and regenerative radio. In transistorised short wave receivers the most important components are, of course, the transistors . in two bands . use tickle coil as regen feed back, at high frequency this increase the feed back then improve the smooth. So I numbered mine #62, partially incorporating his callsign, NR5Q, I dubbed mine the NRQ-62. 2 5-01-09 Building a Doerle "Signal Gripper" Regenerative Shortwave Receiver Step 1 Source Vacuum Tubes and Electronic Parts I found everything required to build my Two Tube Doerle Shortwave Radio set from Antique Electronic Supply (AES), the link to this company's web site was provided earlier. See the Shortwave Radio Kit below! MTM Scientific, Inc. The purpose of this experiment is to deter-mine whether they are also suitable for short-wave radio. Regenerative receivers needed far World-wide stations come in loud and clear Build this shortwave regenerative receiver kit and sit back and enjoy listening to the world. rev1. 6MHz-4MHz, 3. AM Shortwave Radio. 4MHz-8. Ever since I was a kid huddled in front of an old console radio my grandmother gave me, I've been fascinated with the notion of listening broadcasts originating half-way around the world. 2 4/5/2016 Ten Tec 1054 Shortwave Radio Kit Introduction. Read honest and unbiased product reviews from our users. But if you do want to build a relatively simple receiver that performs very well, then building a regenerative receiver is a fun project, and is relatively inexpensive. From the 1940s on, regenerative radios (mostly tube based) have been offered in commercial kits and have been the subject of numerous magazine construction articles. Several friends also built their own radios from kits and at that time it seemed like the best way to get started in the hobby. The more I looked at it, the more " regenerative receiver --- regenerative receiver " kept popping into my head. A minimalist shortwave regenerative receiver circuit is presented that is powered by a 1. Jun 12, 2007 Shortwave Regenerative Receiver. 5 V DC for the filaments and 45V DC for the plate current. You start by building a RF oscillator for the desired This was sold as part of a course on basic radio. 5 to over 10 MHz. Written by AA7EE October 15, 2016. 2V +8. QRP Kits “Scout Regen” SW Regenerative Receiver Version 1. 7 MHZ to 17 MHZ. View the manufactures page for VEC102K View the eham review page for VEC102K World-wide stations come in loud and clear Build this shortwave regenerative receiver kit and sit back and enjoy listening to the world. PE FEB  Band Receiver Kits you'll build and enjoy a versatile shortwave receiver that of the antenna trimmer that is so critical in most regenerative receiver designs. The sensitivity of this shortwave receiver is limited by the noise of the transistor VT1, so it would be better to use in the first stage a low-noise RF transistor. This Knight Ocean Hopper receiver from Allied Radio is a three tube regenerative set covering the broadcast band. The regenerative receiver was the first good shortwave receiver. If the POW camp had a shortwave communications receiver in their HQ (they likely did), any Japanese radio operator also listening to any of these radio stations would have heard the signal from the canteen radio on the same frequency. Mar 28, 2016 Tony Westbrook recently contacted me about a regenerative receiver kit he has designed and produced in the UK. 3V Use #22 Hook-upW ire forW indings Numbers on coil are connection points to the FAR Circuits PC board 8 3 (D1) +6. 0: 955(3) 92: A Simple Regenerative Shortwave Receiver Regenerative Receiver for 40 Meters - Rick Andersen KE3IJ (revised 2006) [I have revised this article as of January 15th, 2006, showing an alternative to the toroid-core inductors of the original design. The course EK-2A covered basic radio concepts and built up a two-tube regenerative receiver. P. Tubes are 35W4 as rectifier, 50C5 for audio output and a 12AT6 triode as the regenerative RF detector. . +12 V. This kind of receiver is easy (and fun) to build and has been used by many generations of hams to learn radio basics. So, what did I name my receiver? The NRQ-62, Bruce Vaughan built 59 regen receivers prior to his Ultimate Regenerative Receiver, #60. This was my first low voltage regenerative receiver. The VEC-102K covers all or part of 75/80, 49, 40, 30, 31, 20, 25, 22, 19, 17, 16, 15, and 13 Meter bands. com in a single category. O. 7 MHZ and the short wave bands from 6. Back in 2003, an experimental Colpitts-type shortwave regenerative receiver was made public  . 2-volt cell and uses exclusively 2N3904 transistors. Armstrong and patented in 1914. Introduction. The Ozark Patrol circuit is a two-band shortwave receiver, using only three NPN transistors in its circuit. Built on a finished, pattern-grade hardwood base, this regenerative radio receiver has antique 1930's parts and fixings. Tickler coil L3 provides regenerative short-wave bands from 1. A REGENERATIVE RECEIVER FOR BEGINNERS A modern version of the classic re- generative receiver is shown in Fig 17. MFJ-8100K Shortwave Regenerative RX Kit (Assembly Required) Remember hunching over your regenerative receiver for hours with a pair of phones pressing uncomfortably against your ears? You could hear just about anything that fancy superhets could hear. rrHE MOST timely short wave receiver for the summer months. Doerle "sets" were a popular home built regenerative shortwave receiver of the 1930s. 1) The Jones "One-Tube" Regenerative Receiver. After some shopping around, we decided to use two small 45 volt B batteries, and one 1. I exchanged emails with Ramon Vargas and he told me that where he lives, he mostly has trouble with FM stations interfering with his shortwave reception. The main category is Regenerative Receiver that is about Regenerative Receiver. Regenerative receivers provide a surprising level of performance with only a handful of components. Here shown only as a minimal design with 2 transistors, is a very good regenerative radio receiver. 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. Low voltage 3 tubes (EL84) short wave regenerative receiver. Tony Westbrook recently contacted me about a regenerative receiver kit he has designed and produced in the UK. Figure 575 : AM Shortwave Radio. The circuit was designed to create a portable and sensitive regenerative receiver that will be suitable for shortwave band listening. Power for this receiver is 1. It was reported to tune from the 22-meter band up to the 11-meter band with a single set of coils. Full text of "High Performance Regenerative Receiver ARRL" See other formats High Performance Regenerative Receiver Design There have been several popular Regen projects in recent QSTs and ARRL Handbooks Look at the design process and progress; then build one—or both—of the receivers described. Shortwave radios are a different story. Course EK-2B continued the course and expanded the radio to a 6-tube 2-band superhet receiver that could receive the AM broadcast band and shortwave from 3 to 10 MHz. Shortwave Radio. +9V. Feb 1, 2017 The basic regenerative receiver was patented in 1914 by the prolific . The REL receiver turned up in a $300 pile of amateur and WWII radio equipment recently purchased primarily to get a Wavetek service monitor. It's a regen and as such, displays traits common to regenerative receivers in general (surprise, surprise). 50. 2. Fig 6—The Junk Box Special, a low-cost shortwave receiver. Radio Kennedy Co. regen2 regen1 This project is a great way for beginning builders to hone their skills at circuit construction. Commercially available communications The regenerative receiver, regen radio was a popular form of radio receiver in the 1920s and 1930s. Tag: Regenerative receiver. 5 v actually) volt A battery. In the 1930s the regenerative receiver was replaced by the superheterodyne circuit in commercial receivers due to the superheterodyne's superior performance and the falling cost of tubes. Today's offering is a QRPkits Scout Regenerative Shortwave Receiver. edu. Shop with confidence. Here’s the product description: 1 – 30 MHz with band spread tuning. It is capable of operating from a simple wire antenna. Ten-Tec 1253 9-Band SW Receiver (Regenerative) product reviews by real people like you. Ten-Tec offers two kits in the $30 range that are good beginner projects. All of this is accomplished with two plug in RF coils. 6 V 0V 0V 0V +4. This covers the 49m and 31m SWL bands, as well as the 80m and 40m amateur bands. Regenerative receivers have a long history in radio dating back to the first days of the vacuum tube. 1936FebSWcraft Eighty years ago, the SWL shown here was exploring the  This project is your author's first attempt at building a regenerative receiver, it has The receiver tunes from 5-10 Mhz in the shortwave band and it can pick up  Knight Ocean Hopper receiver from Allied Radio is a three tube regenerative Listening to short wave signals from distant foreign countries that crossed the  Build this shortwave regenerative receiver kit and sit back and enjoy listening to the world. . I also considered building a direct conversion radio, but the fact is, a regenerative receiver can easily be used as a direct conversion detector simply by turning up the regeneration. As a result this form of radio deserves its place in this summary of the different types of radio available. Fist of all, use capacitor as throttle regen control, this is the key factor for smooth regen control. Comparing the Weak Signal Performance of a WBR Regen with a K2. qrparci. “Scout Regen” Shortwave Regenerative Receiver Dual band receiver covering 3. So they produce RFI near they are used. 8-22MHz range, with front panel RF gain and fine tuning; plus outstanding speaker/headphone audio No. 1. There are two reasons for this. The next job, after the receiver was mounted to the lid, was to bolt in the three batteries so that they would stay put, so the receiver could be placed or played in any position. If the receiver is built with a narrow tuning range instead of the 5-10 Mhz range, it can be used to receive SSB and CW radio signals in the 40 meter ham band. A regenerative receiver, by contrast, could often provide adequate reception with the use of only one tube. This circuit, by Walter Lange, also uses a colpitts regenerative detector. The regenerative principle was patented by Edwin Armstrong in 1914. A High-Performance Shortwave Receiver Fig 7 shows a highly sensitive and This all-tube regenerative receiver utilizes 3 tubes (3Q4, 1T4, 1T4) and covers 4. 5 to 10 MHz QRP Kits . A fellow has redone the circuit with modern parts. About RX1LM/HF. The regenerative receiver was popular in the early days of radio because it could deliver so much performance out of a simple circuit. If these experiments don't show the benefits of measurement, then I'm afraid nothing will. Some combination of those 4 tweaks will give you the best sounding audio and hopefully keep the signal level where minimal clipping of peaks occurs. Doerle of Oakland, California. N1TEV published article on ARRL said the regen receiver can compete most of heterodyne receiver actually. Tunes in the AM band from 670 KHZ to 1. My MFJ 8100 kit went together without a hitch and works as advertised; in fact, it can be quite sensitive if you patiently adjust it AM shortwave reception, I suggest using a larger front panel with large knobs or a vernier dial for the REGEN ADJUST and main-TUNE (band-set) ca- pacitors to make these adjustments easier. org/files/file/Technology/tis/info/p Remember hunching over your regenerative receiver for hours with a pair of phones pressing uncomfortably against your ears? You could hear just about anything that fancy superhets could hear. E. A regenerative circuit is an amplifier circuit that employs positive feedback Some of the output Homebuilt Armstrong one-tube regenerative shortwave radio with In a regenerative receiver the output of the tube or transistor is connected  Mar 24, 2010 Back in 2003, an experimental Colpitts-type shortwave regenerative receiver was made public on the web by this servant. $14. com. FM Radio. Knight Ocean Hopper receiver. Tuning is accomplished by a 1SV149 hyperabrupt varactor powered by a separate 9-volt supply. net. www. One is that antenna movements can shift the frequency of the regenerative detector slightly. This is a two transistor regenerative receiver, roughly the  Feb 7, 2016 1936 3-Tube Regenerative Shortwave Receiver. org -coupling the antenna-ground system to the receiver and sensitivity-selectivity trade-off -BJT and JFET RF types suitable for smooth gain control in regenerative receivers. The RF stage amplifier and low impedance input/high impedance output is accomplished with the 2N2907 bipolar transistor. 281 Short-Wave Regenerative Receiver . It employs a reflexed regenerative detector to maximize gain from its simple design, followed by a two-transistor audio amp. The regenerative radio receiver or, even super-regenerative radio receiver or, "regen" if you prefer, are basically oscillating detector receivers. Only at eHam. 8MHz-18MHz. However, these new kits utilize modern engineering that leverages the advanced capabilities of today's electronic components. Regenerative receiver history. Before 1940, this was the most used shortwave radio circuit for AM and CW reception. For CW and SSB, the small knobs are perfectly adequate. ) The resource is currently listed in dxzone. And more often than not, they are regenerative receivers. It provides good general-coverage reception of the Find helpful customer reviews and review ratings for MFJ-8100K Shortwave regenerative Receiver kit at Amazon. A short article describing a simple homebrew regen receiver. 6 to 25 MHz, (in-phase) feedback so that the input sig  The most unbiased source of international news today is shortwave radio. The super regenerative radio is not used much these days, although there are a few niche applications . This entry was posted in Kits, Manufacturers, New Products, News, Radios, Shortwave Radio and tagged Kits, KRC-2, KRC-2 Regenerative Receiver, Receiver Kits, Regen Receivers, Regenerative Receivers on March 28, 2016 by Thomas. The Scout Regen receives CW, SSB and AM signals from 3. The following is a description of a regenerative, tube-based radio made out of spare parts. 50 MHz shortwave band. This is a two tube regen or regenerative receiver: one 1T4 detector and one 3V4 audio amplifier. 50 NINE BAND SHORTWAVE REGENERATIVE RECEIVER BY WILLIAMS. INTRO & UPDATE This circuit is coil-less portable shortwave radio that's easy to build and works very well. We had 1 of this item in stock at the time of the last update. Shortwave radio receivers are often used by dedicated hobbyists called shortwave listeners. The super regenerative receiver is based on the simpler regenerative radio. 1) Attempt to make a general coverage receiver (RE-RX1LM/HF) LW, MW and SW bands. Short-Wave Super regenerative Receiver Circuit diagram. Receives AM and CW signals. A. This particular This design is very similar to RCA's A. operated, "Regenerative Shortwave Receiver". Includes a painted and silk screened chassis, circuit board and all parts. That is inherent in a simple regenerative receiver circuit. However, its performance is similar or better than usual regenerative receiver. Doerle's regenerative radio designs were published in many amateur radio magazines in the 1930s. This particular schematic shows a 1G6 tube instead of the original #19 or #53 tube. For mediumwave and shortwave reception (“AM radio,” international  Regenerative receivers provide a surprising level of performance with only a up to the higher short-wave bands above which the superregenerative detector  Oct 21, 2018 With the present configuration, the regeneration control is very abrupt, suitable for a superregenerative receiver, but too abrupt for a useful  1) The Jones "One-Tube" Regenerative Receiver. Unfollow shortwave receiver to stop getting updates on your eBay Feed. 3V +7 . Lange chose to use a FET rather than a bipolar transistor in his circuit. See more ideas about Radios, Ham Radio and Tube. REGENERATIVE SHORTWAVE RECEIVER 1000 pF C8 D1 D2 R4 20-120 pF* 1 0-6 pF SW3 0. Now that I'm retired, I can take the time to build things and use the extensive junkbox of parts that I've accumulated. Shortly after inventing the regenerative receiver, Armstrong started working on the  itor regeneration control are unknown The regenerative circuit was used in . S hortwave radio is what got me interested in this radio stuff in the first place. Crystal radios may be the simplest kind to make, but regenerative receivers are more practical and only a little more complicated. [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. With a few minor coil adjustments, the receiver should also be able to work on the 80 and 30 meter ham bands. 2-Step Audio Amplifier It makes sense to have a good, versatile utility audio amplifier to try with some of these projects rather than incorporating integral audio stages on every one. Some Regenerative Receivers. 9-BAND SHORTWAVE RECEIVER Electronic switching of 9 bands in 1. Results 1 - 7 of 7 Get the best deal for Regenerative Receiver In Ham Radio SHORTWAVE THREE TUBE REGEN RADIO RECEIVER CRYSTAL CLEAR. Back in 2003, an experimental Colpitts-type shortwave regenerative receiver was made public on the web by this servant. It runs off household current, using a 12A7 tube, which is a dual tube containing a rectifier and pentode. Thomas Edison’s work with evacuated light bulbs led him to observe that, in an evacuated tube, electrons would flow in one direction from an incandescent filament to a positively charged plate. Plug-in coils are used, for […] SHORTWAVE THREE TUBE REGEN RADIO RECEIVER CRYSTAL CLEAR Heres a very nice three tube, handcrafted, vintage style, high-performance shortwave regenerative radio. In World War II the regenerative circuit was used in some military equipment. Regenerative Receivers. Runs on 12 Volts AC, you SHORTWAVE REGENERATIVE RECEIVER KIT with CASE. Shortwave receivers, as with most electronics, are so cheap these days that it generally doesn't save you any money to build your own. and a beautiful TRF Receiver. It has a BFO and speaker. 50-13. The regenerative stage is first, followed by a transformer coupled audio amplifier stage. An example is the German field radio "Torn. The WBR seems to get a bit of a bad rap This is one of the big disadvantages of the regenerative receiver. Leave a reply. Short-Wave Regenerative Receiver Radio Radio Shop, The Echophone; Sunnyvale, CA, build 1920, 3 pictures, 2 tubes, United States of America , schematics A High Performance Regenerative Radio September 30, 2012 August 4, 2015 raycharlesring RF I have built countless regenerative radio circuits throughout the years and some have worked well – some haven’t. Super regenerative receiver basics. arrl. 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 8873 times. It has a loudspeaker so you don't need to use headphones to l A shortwave radio receiver is a radio receiver that can receive one or more shortwave bands, between 1. This is annoying when receiving CW or SSB signals. Figure 1. It was reported to  good general-coverage reception of the Q3. several key point for this, 1. I've listened to many  Nov 23, 2016 Doerle "sets" were a popular home built regenerative shortwave receivers of the 1930s. Homebrew Regenerative Receiver "And experiments in low-voltage operation" Regenerative: 23. Dave unveils the Sproutie MK II regenerative receiver Find great deals on eBay for regenerative shortwave receiver. This radio comes in kit form and tunes from 3. 1,101 results for shortwave receiver Save shortwave receiver to get e-mail alerts and updates on your eBay Feed. The regeneration setting on the KRC-2 is unaffected by QRPGuys K8TND Regenerative Receiver – $40 We will be shut down for the Summer Recharge, and re-open on August 8th How better to explore the world of shortwave listening than with a regenerative receiver. A recent design by [Selenium] is super simple because it uses a Back in the day, Radio had so called P Kits. The circuit schematic of the regenerative shortwave receiver with automatic regeneration control. In the present report, a simple Armstrong-type regenerative receiver for the short-wave bands capable of tuning from 3MHz to 12MHz will be presented as a design exercise. Designed by Charles Kitchen, N1TEV http://www. Regenerative receivers are also radio transmitters because "regeneration" is positive feedback that forms an oscillator at the same tuned frequency in the receiver circuit and that oscillator signal down-converts the radio signal to audio. C. superheterodyne receiver is the most common receiver in use today, the regenerative radio made the most out of very few parts. With MFJ 8100K World Band Receiver Kits you'll build and enjoy a versatile shortwave receiver that employs a circuit concept that is as classic as the early 1920s. Explore Steve wGØAT's board "What's Regenerative Radio", followed by 189 people on Pinterest. Shortwave Radio Experiments. 6 and 30 MHz. - eHam. +6 V. A shortwave radio receiver often receives other broadcast bands, such as FM radio, Longwave and Mediumwave. Shortwave (SW) – a term used to describe the radiant energy in the visible, near ultraviolet, and near infrared wavelengths and it operates in the frequency range However, my understanding is that MOSFETs will introduce high AF noise if used as a detector, so in a regenerative receiver they are best followed by either a diode or an infinite impedance detector to extract the audio. The set includes top-quality antique headphones, longwave and shortwave plug-in coils (550-1750kHz longwave and 29-46m shortwave), and all required batteries. It's based on the principle of the ZN414 only it can handle higher coverage. 5 to 10 MHz Hendricks QRP Kits Hendricks QRP Kits “Scout Regen” SW Regenerative Receiver Version 1. However in the past it was far more widely used, although care had to be taken to ensure it did not radiate interference. Here are plans for building a shortwave radio receiver using 3 transistors, a simple homemade coil, an Air Variable Capacitor and some common electrical parts. The rectifier supplies the B+, and the pentode is a regenerative detector. An antenna with this parameters can receive very weak signals. The regenerative radio receiver evolved in a line of research that ran parallel to crystal radio research. Regeneration Control: When tuning for stations you will usually want the regeneration control just below or just above the critical point. My start in radio included a crystal radio kit, a small Radio Shack regenerative receiver, and a Heathkit superhet receiver. Shortwave radio is radio transmission using shortwave radio frequencies. Sure, you had to play around with the regeneration control just right and have a steady hand to tune but you could hear em 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. The LM386 seems OK in my book. How I finally settled on a design for a FET Armstrong type regenerative radio. The VEC-102K covers all or part of 75/80, 49, 40, 30, 31, 20, 25, 22,  Jan 1, 2011 It is my first attempt at building a one-tube regenerative receiver and it a Command Set receiver or even a “Radio Shack” portable shortwave  Posts about Regenerative receiver written by AA7EE. It could also be set up to cover just one shortwave broadcast segment. High Performance Regenerative Receiver - Ham Radio Homebrew Projects. I will post pictures and a better description when I have done so. This radio kit will cover the AM radio band along with the SW radio band. A PORTABLE REGENERATIVE RECEIVER (2002) KLIK HIER VOOR DE NEDERLANDSE VERSIE. Homebrew Regen Shortwave Receiver Craig LaBarge, WB3GCK. FM Receivers. A Simple Regenerative Shortwave Receiver. ; San Francisco & St. Figure 375 : FM Radio  Regenerative Shortwave receiver with MOS transistors. It's called the KRC-2. This all-tube regenerative receiver utilizes 3 tubes (3Q4, 1T4, 1T4) and covers 4. If your receiver does not, overall, enter regeneration until the regeneration control is turned quite far up, try adding a turn to the tickler winding L2. Shortwave Regenerative Receiver Dual band receiver covering 3. For AM and shortwave broadcast stations you will want it just below the critical point. Most of the rest were purchased for what they are, early regenerative shortwave receivers. Super regenerative receivers are characterized by their high sensitivity. It’s called the KRC-2. Building the N1TEV Regenerative Shortwave Receiver. A regenerative receiver by AA5TB. Figure 1 The circuit was designed to create a portable and sensitive regenerative receiver that will be suitable for shortwave band listening. A good regenerative receiver A good SSB-CW-AM regenerative receiver with a fine tuning by moving the wooden stick with a grounded piece of PCB towards the coil. I use rf amplification to not only improve the sensitivity but to isolate the antenna from the detector. 0: 6V6: 91: Acorn Short Wave Three Receiver: Uses three 955 acorn tubes. E-mail. Mr. Output power is good for headphones. Feb 16, 2009 the Radio Shack Science Fair three-transistor shortwave radio kit. Many pieces of ham radio equipment are available as kits. I have not yet built this receiver, but intend to do so ASAP. The plans for this little one-tube regenerative receiver appeared in Shortwave Craft magazine 80 years ago this month, May 1936. The Portable Receiver and the smaller simple version. 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. Louis, build 1921, 43 pictures, 1 schematics, 1 tubes, United States  Figure 857 : AM Radio MW/VHF. World-wide stations come in loud and clear Build this shortwave regenerative receiver kit and sit back and enjoy listening to the world. It is easy to listen SSB, even on 18 MHz. Box 522 Clinton, Michigan 49236 USA. AN IMPROVED SHORTWAVE REGENERATIVE RECEIVER Ramón Vargas Patrón rvargas@inictel-uni. 5mhz-11mhz. b". Shortwave (SW) – a term used to describe the radiant energy in the visible, near ultraviolet, a Home Brew Shortwave Radio Projects. This project was designed and built by Charles Kitchin. This web page describes a small, single tuned circuit regenerative receiver primarily for daylight reception in the 16, 19, 22 and 25 meter international shortwave broadcast bands. Four page article is accessed by changing "acorn4" to "acorn1", etc. A D cell and five 9V transistor batteries wired in series will work to power this radio. 8V +1. 5V to2V +8. The regen radio was one of the many inventions in radio technology that was made by Edwin Armstrong. 2N2222 transistor TRANSCEIVER that uses a regenerative receiver. 75. A High-Performance Shortwave Receiver Fig 7 shows a highly sensitive and AM shortwave reception, I suggest using a larger front panel with large knobs or a vernier dial for the REGEN ADJUST and main-TUNE (band-set) ca- pacitors to make these adjustments easier. (Reference: "Solid State Shortwave Receivers for Beginners", R. net is a Web site dedicated to ham radio (amateur radio). shortwave regenerative receiver

f2, bq, 6m, hw, d7, cl, u0, an, jo, sj, ai, my, qk, en, ko, kc, qs, 6m, bz, vf, hy, xq, vt, af, lu, pn, vk, jb, lm, tt, pt,