RadioBanter - View Single Post

May 8th 06, 12:13 AM posted to rec.radio.amateur.homebrew

wrote:
Anybody know any tubes...st or gt shape preferred that will work on 12
volts plate voltage for small 1 tube regens...possibly a stage or two
of amplification also.

I know there were automobile radio tubes made that didnt need vibrators
but dont know any numbers myself.

I found regular plain old receiving tubes worked OK down to 18 volts on
the plates - didn't have any convenient way of getting 12 at the time
but I'll bet they would have worked.

Audio power amps had REALLY low output but if you're building a 1-tube
regen you're not driving a speaker anyway...

--
Doug Smith W9WI
Pleasant View (Nashville), TN EM66
http://www.w9wi.com