
10-22-2022, 12:39 PM
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VideoKarma Member
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Join Date: Jan 2011
Location: Delaware ny
Posts: 3,718
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Quote:
Originally Posted by Username1
Hi!
Sorry, Our crappy internet service was off for several days.... If you have 15V
on the Cathode of tube V1, 6EH7 the 1St Video IF, then I would be wondering
what the plate voltage is? is the 275V source right, and is it 275V or lower?
Also what id the voltages on each side of R38, a 22 Ohm, R44, a 47 Ohm,
and R45, a 560 Ohm. Also what voltages are on both sides of R37, a 2.2K Ohm?
Please make these readings with everything hooked up.
Also are your power supply voltages back to what they should be?
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V1 pin7 193v
R38 14.92 14.35
R44 13.26 14.43
R45 13.45 0
R37 7.70 7.66
The 275v is around 280v other voltages are good on the ps. It appears that once the 8.2k goes to ground the voltage drops don’t have to be on pin 8 for the voltage to drop.
Last edited by timmy; 10-22-2022 at 01:04 PM.
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