[time-nuts] 5060A acoustic noise issue
corby d dawson
cdelect at juno.com
Tue Jan 8 11:48:29 EST 2008
I once obtained a 5060A that was used in the time and frequency lab at
I guess it had sentimental value to them as they kept it going long after
the 5061B had come out.
It had a newer tube in it and more to the point it had one of the later
5061A/B style A11 oven controller modules installed.
This provides DC to the hot wire and no acoustic noise!
I can't remember where they shoe-horned it in as it is a taller module
than the 5060As.
These A11 units are obtainable and the modification would not be
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