Garey Barrell <[EMAIL PROTECTED]> made an utterance to the drakelist gang
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Set VOX Gain to mid-rotation or less.
Boyd Van Horn wrote:
These are three good finals. I am getting over 250 watts on 20 and 40
meters, less on 15 and 10. I have tried changing the bias in resting
condition from less than .1 to more than .1 and that does not help. I
know the power supplies are good and I have both of them with the
updated circuit boards in them. Boyd
*/Gary Poland <[EMAIL PROTECTED]>/* wrote:
"Gary Poland" made an utterance to the drakelist gang
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Boyd,
What kind of power are you getting from your 6JB6's? What I have seen
happen is when the final tubes weaken the bias voltage has to be
set more
positive to obtain the 100 ma plate current. Since the negative
bias voltage
is also used by the VOX circuit it plays havoc with tube's abiltiy to
release the relay. Not an issue if your finals are in good shape.
73, Gary W8PU
http://home.cinci.rr.com/w8pu
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