Glowbugs - homebrew (DIY) tube gadgets, receivers and transmitters, dedicated to the Golden Era of Amateur Radio. Generally, any small, home-built tube-type transmitter or receiver may be referred to as a glowbug. The majority of glowbug transmitters are designed to be used in the CW radiotelegraphy mode. www.squidoo.com/glowbugs
Andy, your stuff is always so awesome. One day, I need to print up some vintage Letterpress QSL cards for you, to go with your vintage station. Hey! I just came across the carcass of an old Grundig Majestic. Perhaps I can salvage the transformer and filter choke, toss a few filter caps, a 5U4, and rig up a 6AG7 / 6L6 MOPA to couple with my HRO-5 that I hope to re-cap.
<p>Just a note to let you know I have added this ( a year ago ) to the instructable:</p><p> Comprehensive Guide to Electronic Breadboards: A Meta Instructable</p><p>&gt;&gt; <a href="http://www.instructables.com/id/Comprehensive-Guide-to-Electronic-Breadboards-A-Me/" rel="nofollow"> http://www.instructables.com/id/Comprehensive-Gui...</a></p><p>Take a look at a bunch of ideas for using breadboards.</p>
Andy, UU1CC, I assume that is your call sign? <br>I have a small interest in Glowbugs. <br>I found an old &quot;QST&quot; article about a home brew, two band Reciever (80 &amp; 40 M) from April 1941. Principle seems sound even though it uses a &quot;C Battery&quot; for bias- 6V AC for filaments. <br>I would like to rebuild it or something similar using a 1U5 and a 1R5 so I could be completely battery powered. I probably would use a &quot;B Battery&quot; of AA pen light cells. <br>Worst kit I have found from the 1950's was a ONE TUBE ham station offered (for about $15) by a one man company in Kearney, Nebraska. It was 1/2 triode oscilator transmitter, 1/2 triode Regenerative reciever. You were lucky to be heard across town. A PI network to match it to the antenna might have helped it to get out better. <br>I was thinking of using a tube like that double triode as a push/pull crystal oscilator transmitter. <br>I also have plans for an early 1950's camper's 2 tube superhet reciever ( 1U5, 1R5) from &quot;Popular Mechanics&quot; magazine. <br> <br>Oh, yes, my call is KC0KBG.
Very nice - there should be more ham radio stuff on Instructables.
Amen. It seems like a perfect place for ham projects.
I like it! This is the true spirit of HAM radio! I have to make one of these soon!<br><br>-KC2VDM
can any body tell me how to make a fm radio????????
The biggest issue for a FM receiver is the detector stage, and a limiter. The limiter stage is simply an amplifier that is followed by a diode clipper stage. Insertion of these 2 stages into an AM radio will net you a FM receiver. Schematics for FM detectors, and limiters abound on the Internet, so a google search should net you what you need. If you can follow a schematic, then you should do quite well with this project. <br>IC versions of these radios are also very common, and readily available.
thanks for the reply
what tubes do you use? I'm preaty sure there is a 6l6 there
You're right - it is early Russian 6L6-GB's clone - 6P3 http://timelesson.blogspot.com/2010/02/6p3-beam-power-tetrode.html
nice, it has a steampunk look to it, I like it, you should really post a how to...
Thank you, but I'm so unfamiliar with all these &quot;howtos&quot; - I'm Instructable newbie, just second day here. Take a look at <a href="http://timelesson.blogspot.com/2009/01/straight-key-night-mopa_01.html" rel="nofollow">timelesson.blogspot.com/2009/01/straight-key-night-mopa_01.html</a> and <a href="http://timelesson.blogspot.com/2009/12/evergreen-exciter-for-special-night.html" rel="nofollow">timelesson.blogspot.com/2009/12/evergreen-exciter-for-special-night.html</a><br />
Did you use published circuits, or design your own?<br />
Hi there. Using my own - it is The Main Rule :-)<br />

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Bio: Partido Geozentrista de los Martianos Intruderz
More by Andy UU1CC: Second Life Of MFM Hard Drives - Iambic Telegraph Key Glowbugs - Homebrew Tube Amateur Radio Transmitters and Receivers
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