Well, the T4XC is back; the low output power was due to a power supply
ripple on the HV and screen rails . I tuned the low output signal on another
receiver and the ripple modulated problem was quite evident. Fortunately, I
still had the AC-4 rebuild kit from the Heathkit shop which I purchased from
Mike at Dayton in 2007! (lucky for me the HV went before the bias!) I
installed it this morning and the problem is solved. The finals are still a
bit soft as I can manage about 100 watts output on most bands, so I'll keep
my eyes open for a new set of 6JB6's. Many thanks to Gary and all the tips
on keeping the Drake's percolating. See you on the bands,
73 de W4DL Mike
ex AK7P * WA9SWF * WN9SWF
PS: Terry, no need to sent the tubes..thanks.
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