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#1
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one tube xtal tx
Hello
I am looking for schematics and any other help in making one tube CW QRP transmitter for 80m band, BATTERY operated. I think about 3s4t or 1t4t (DL96, df96). What is minimal anode voltage (typical is 67,5v) which I can use with this lamp? MAc |
#2
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mac wrote:
I am looking for schematics and any other help in making one tube CW QRP transmitter for 80m band, BATTERY operated. I think about 3s4t or 1t4t (DL96, df96). What is minimal anode voltage (typical is 67,5v) which I can use with this lamp? You'll probably get better answers, but... I once had an old MW radio that used tubes of this kind. It worked fine with only 18V on the anodes. (two 9V batteries in series) -- Doug Smith W9WI Pleasant View (Nashville), TN EM66 http://www.w9wi.com |
#3
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Here's a web site that might help, http://antiqueradio.org/lil7.htm
73 Richard WB8KRN "mac" wrote in message ... Hello I am looking for schematics and any other help in making one tube CW QRP transmitter for 80m band, BATTERY operated. I think about 3s4t or 1t4t (DL96, df96). What is minimal anode voltage (typical is 67,5v) which I can use with this lamp? MAc |
#4
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Many thanks to Doug and Richard.
Of course I will take with pleasure any other help or informations. After my success with cubic incher, pixie and aquarius i want to try (or rather return) to tubes. My first transmitter was ECL82 ;-) MAc sp9mrn |
#5
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mac wrote:
Hello I am looking for schematics and any other help in making one tube CW QRP transmitter for 80m band, BATTERY operated. I think about 3s4t or 1t4t (DL96, df96). What is minimal anode voltage (typical is 67,5v) which I can use with this lamp? MAc Doing an altavista search on "glowbug" will turn up at least one battery powered transmitter project, and lots of fun tube stuff. -- Tim Wescott Wescott Design Services http://www.wescottdesign.com |
#6
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It was the KEYword that I was looking for ;-)
Thank You MAc |
#7
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19 tube should be fun, I'd go with around 67 or greater for the plate.
Pete "mac" wrote in message ... Hello I am looking for schematics and any other help in making one tube CW QRP transmitter for 80m band, BATTERY operated. I think about 3s4t or 1t4t (DL96, df96). What is minimal anode voltage (typical is 67,5v) which I can use with this lamp? MAc |
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