Pin 7 to ground = 20Mohms
Pin 8 to ground = 100k
Search found 36 matches
- Sat Mar 20, 2021 1:45 pm
- Forum: Amp Talk
- Topic: Abbey Harmonic II
- Replies: 68
- Views: 17194
- Fri Mar 19, 2021 10:42 pm
- Forum: Amp Talk
- Topic: Abbey Harmonic II
- Replies: 68
- Views: 17194
- Fri Mar 19, 2021 10:41 pm
- Forum: Amp Talk
- Topic: Abbey Harmonic II
- Replies: 68
- Views: 17194
- Fri Mar 19, 2021 10:39 pm
- Forum: Amp Talk
- Topic: Abbey Harmonic II
- Replies: 68
- Views: 17194
- Fri Mar 19, 2021 1:32 pm
- Forum: Amp Talk
- Topic: Abbey Harmonic II
- Replies: 68
- Views: 17194
Re: Abbey Harmonic II
Yes pin 7 branches off to pin 1
- Thu Mar 18, 2021 1:37 pm
- Forum: Amp Talk
- Topic: Abbey Harmonic II
- Replies: 68
- Views: 17194
Re: Abbey Harmonic II
Am getting hum on pin 2 of V3...and v1 and v2 are as silent as they come
- Thu Mar 18, 2021 1:34 pm
- Forum: Amp Talk
- Topic: Abbey Harmonic II
- Replies: 68
- Views: 17194
- Wed Mar 17, 2021 1:56 pm
- Forum: Amp Talk
- Topic: Abbey Harmonic II
- Replies: 68
- Views: 17194
Re: Abbey Harmonic II
Tried replacing all the preamp tubes and still the same result... very low volume on all channels
- Tue Mar 16, 2021 6:30 pm
- Forum: Amp Talk
- Topic: Abbey Harmonic II
- Replies: 68
- Views: 17194
Re: Abbey Harmonic II
The input jack was working before... and hasn’t been touched
- Tue Mar 16, 2021 6:29 pm
- Forum: Amp Talk
- Topic: Abbey Harmonic II
- Replies: 68
- Views: 17194
Re: Abbey Harmonic II
Tested pin 7 again... now loud hum just a little bump as soon the tester lead touched it... still getting 38v
- Tue Mar 16, 2021 10:27 am
- Forum: Amp Talk
- Topic: Abbey Harmonic II
- Replies: 68
- Views: 17194
Re: Abbey Harmonic II
I don’t think the problem is V4, otherwise I wouldn’t get any sound through the return at all right? I know that pin 2 is far too loud to get any measurements, I can hear it humming just by getting close to the pin without even touching it. I’ll try pin 7 again this morning
- Sat Mar 13, 2021 2:01 pm
- Forum: Amp Talk
- Topic: Abbey Harmonic II
- Replies: 68
- Views: 17194
Re: Abbey Harmonic II
Yep getting signal through the return jack but not through the input, not even with the patch cable in the send/return
- Sat Mar 13, 2021 12:55 pm
- Forum: Amp Talk
- Topic: Abbey Harmonic II
- Replies: 68
- Views: 17194
Re: Abbey Harmonic II
Also 470k resistor on pin 2 is only giving me 150k
- Sat Mar 13, 2021 12:54 pm
- Forum: Amp Talk
- Topic: Abbey Harmonic II
- Replies: 68
- Views: 17194
Re: Abbey Harmonic II
Ok put everything back together and now getting 252v on pin 1 and buzz, pin 2 is still too noisy to get any measurements. And 75v on pin 8.
- Fri Mar 12, 2021 4:15 pm
- Forum: Amp Talk
- Topic: Abbey Harmonic II
- Replies: 68
- Views: 17194
Re: Abbey Harmonic II
There is continuity on the pin1 area, on the other side of the circuit. But where I use the test lead when powering up, there is none so I’m guessing that it’s just the top side of the board that has no contact with that pin