Re: [Elecraft] OT. Crystal Sets

2013-07-25 Thread Mel Farrer
From: Chuck Smallhouse To: Elecraft@mailman.qth.net Sent: Thursday, July 25, 2013 2:22 PM Subject: [Elecraft] OT. Crystal Sets Yes it most probably was galena, not geranium (wrong spell check choice !), and the "crystal" was about 3/8" in diameter, and height, an

Re: [Elecraft] OT. Crystal Sets

2013-07-25 Thread Ron D'Eau Claire
My EE classes focused on plotting the characteristic curves of vacuum tubes (late 50's). Semiconductors were left for us to learn on our own. This was my first radio, followed with a Meissner kit using type 76 triodes in regen/audio amp combo. I also mistakenly said the crystal was germanium but

[Elecraft] OT. Crystal Sets

2013-07-25 Thread Chuck Smallhouse
Yes it most probably was galena, not geranium (wrong spell check choice !), and the "crystal" was about 3/8" in diameter, and height, and maybe mounted in Woods Metal not lead. Many years later, it seems, my first experience with a semiconductor device, was with an IN34, crudely built (by toda

Re: [Elecraft] OT: Crystal Sets

2013-07-25 Thread Ron Polityka
Hello, I would like to say thank you to Chuck for the initial e-mail and all the other guys with their comments. I also would like to thank the Elecraft Monitor for allowing the thread to go thru the system. This has brought a lot of memories flooding back to me from my earlier years. I

Re: [Elecraft] OT: Crystal Sets

2013-07-25 Thread wa5pok
When I taught physics, it was a requirement that all my students build a crystal radio ... great fun by all and a couple went on to get a ham ticket! When I was in 5th grade I built the "Fox hole radio" and never got it to work. An old time gave me this tiny glass tube with two wires sticking o