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38-116 Code 121 Powering Up Help
#17

Ok it's looking much better but we need to find what happened to the -20vdc on pin 5. Lets take a look at the junction of  134 and 135, between there and chassis ground should see the -20v or so. If not go to 140 (the backwards one) do you have -20v across it? Testing can be done with the 6L6's out. If you do have the -20v around it would seem that your interstage transformer isn't wired it properly and we can go over that too. The 6L6 that had the high + voltage on pin 5 would appear to be a goner. OBTW Why don't you replace that backwards cap, if it had a high + voltage across it it's going to be shorted. Just a thought.

When my pals were reading comic books
I was down in the basement in my dad's
workshop. Perusing his Sam's Photofoacts
Vol 1-50 admiring the old set and trying to
figure out what all those squiggly meant.
Circa 1966
Now I think I've got!

Terry


Messages In This Thread
38-116 Code 121 Powering Up Help - by AVSorrell - 07-17-2017, 07:12 AM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-17-2017, 07:21 AM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-17-2017, 08:47 AM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-18-2017, 07:57 AM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-18-2017, 11:05 AM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-19-2017, 08:08 AM
RE: 38-116 Code 121 Powering Up Help - by Radioroslyn - 07-19-2017, 08:31 AM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-30-2017, 01:49 PM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-30-2017, 07:10 PM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-31-2017, 07:42 AM
RE: 38-116 Code 121 Powering Up Help - by morzh - 07-31-2017, 12:27 PM
RE: 38-116 Code 121 Powering Up Help - by Chris h - 09-26-2017, 12:19 PM



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