[Hammarlund] sp600 frequency question

Grant Youngman nq5t at comcast.net
Sat Mar 19 19:48:40 EST 2005


 
> I plan for this? I have some black beauties but if I can 
> avoid it, I would rather not touch them for fear of causing 
> more damage. 

Replace them.  They will eventually cause you problems, even if things seem
to be working ok for now.

All you need for alignment is a VTVM (or other HI-Z analog meter) and a
signal generator.  If you don't have an analog meter, a scope will work.
(Digital voltmeters are mostly useless for alignment purposes).  A frequency
counter is good to set the generator frequency if it is an analog type, but
frankly, the SP-600 is not exactly a "frequency meter", so even that is
really not necessary if you have a high quality generator known to be in
reasonably good calibration.  

Grant/NQ5T




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