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Hoffman Amps Forum image Author Topic: Peavey Classic 50 Wiring Help  (Read 3150 times)

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Offline boxcarcut

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Peavey Classic 50 Wiring Help
« on: April 16, 2015, 11:26:18 am »
Hello Friends.

I recently changed the caps on my old Classic 50 and replaced the power tubes?

I'm not certain I have the transformer wires going to the correct spot.

I did not take any photos before hand and I'm having a heck of a time getting this amp back up and running.

Would someone be so kind to look at some photos I took and let me know if it's correct?

Thanks,
Tom

Offline Willabe

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Re: Peavey Classic 50 Wiring Help
« Reply #1 on: April 16, 2015, 11:31:30 am »
Photo's?


           :dontknow:

Offline boxcarcut

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Re: Peavey Classic 50 Wiring Help
« Reply #2 on: April 16, 2015, 11:44:14 am »
https://www.flickr.com/photos/34258368@N03/sets/72157651586519850/

I hooked it back and got very little sound out of it. I also can't find the proper schematic to check voltages.

Looking for some help

Offline mresistor

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Re: Peavey Classic 50 Wiring Help
« Reply #3 on: April 16, 2015, 11:57:52 am »
Heres the schematic   http://el34world.com/charts/Schematics/files/peavey/peavey_classic50.pdf

Is the connector with the blue and brown wires the one that goes to the OT input? If so can it be inserted backwards/reversed? If so you could have reversed it and now it's out of phase.
« Last Edit: April 16, 2015, 12:01:38 pm by mresistor »

Offline labb

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Re: Peavey Classic 50 Wiring Help
« Reply #4 on: April 16, 2015, 12:14:40 pm »
Check the ribbon cables connections very close

Offline mresistor

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Re: Peavey Classic 50 Wiring Help
« Reply #5 on: April 16, 2015, 12:15:40 pm »
Which transformer are you talking about? Using the schematic link I posted you should be able to check the voltages on the HVPS nodes; plate, screen, etc.


 


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