27 Oct 2003, 12:05, Roy J. Tellason (1:270/615), wrote to Matt Mc_Carthy:

Hi Roy.

 MMC>> I'm still hanging onto my dead Heathkit 12" B&W that
I assembled 
 MMC>> in 1962.  I used it here and overseas with lots of finicky 
 MMC>> adjustments here and there until 1981 when I returned home.  
 MMC>> When we had lots of 'hurricane warnings in 1982, I dug it out 
 MMC>> and went all through it with the manual and found two resistors 
 MMC>> I'd put into the wrong places!

 RJT> And it worked before that?

It worked fine, but was a real pain setting and locking vertical and
horizontal.  Where I had screwed up 10 years earlier was putting a 10K ohm
in the horizontal control circuit, and a 100K in the vertical control
circuit.  Once I found that and swapped them, I had plenty of range for
adjusting, until it fell over ten minutes later...   :-((

That GRC-104a was the Heathkit Set number, will have to look up the tube
number, but it was a rare one even in its time as it had wide deflection
(120 degrees?) and a very thin cabinet.


     Good luck...  M.

--- Msged/386 TE 06 (pre)