View Single Post
  #5  
Old 09-18-2005, 12:04 AM
frenchy frenchy is offline
Frenchy
 
Join Date: Dec 2004
Location: Moreno Valley CA
Posts: 534
OK I just measured some pins on the 6gh8 oscillator tube:

pin 6 should be 222v, measured about 160
pin 3 should be 148v, measured about 100
pin 2 should be -5.8v, measuread less than -1 volt
pin 1 should be 54v, measure 60 (ok?)
pin 8 should be 2.2, measure 2.5 (ok?)
pin 9 should be 0.5 v, measure less than 1 volt (ok I think)

So the ones on the oscillator side of this tube seem off as opposed to the side that is in reactance circuit. This was measured with the existing crystal as I didn't see a change with a tube crystal clipped on top of it. The two 47k resistors on either side of the crystal measure correct ohms. Does this sound like maybe the 3.58 coil? Maybe measuring with an ohmeter was not sufficient. Someone had sugested this coil as a possibility before. I don't have any other problems with the set as per has good black and white, sound etc. Thanks!

Last edited by frenchy; 09-18-2005 at 12:29 AM.
Reply With Quote
Audiokarma