Vintage Peavey PA-120 Transistor PA amp - diyAudio
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Old 25th May 2010, 06:56 AM   #1
diyAudio Member
Join Date: Dec 2008
Location: North San Diego, CA
Smile Vintage Peavey PA-120 Transistor PA amp


I have a PA-120 four-channel mixer amp in for repairs.

This is a very early SS unit from Peavey.

It is in mint condition and all works except the power amp driver transformer has a open primary winding.

This is the old circuit where a split winding transformer drives the two or four output transistors.

VOX Thomas Organ amps and a few others used the same circuit.

The owner would like to sell the mixer amp, or if possible to find a driver transformer from another amp? then I will repair this unit.

The preamp stages easy to modify for much better audio quality.

I have a PDF I can Email.

We would like $100.00, or best offer.

Any help most Gracias,
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Old 25th May 2010, 02:05 PM   #2
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indianajo's Avatar
Join Date: Jan 2010
Location: Jeffersonville, Indiana USA
Default location

It's a big country. Click on User CP, edit your profile to show your location at least down to county and state. On an inexpensive item like this, $35 shipping would be a real barrier.
Dynakit ST70, ST120, PAS2,Hammond H182(2 ea),H112,A100,10-82TC,Peavey CS800S,1.3K, SP2-XT's, T-300 HF Proj's, Steinway console, Herald RA88a mixer, Wurlitzer 4500, 4300
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Old 26th May 2010, 05:22 PM   #3
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Join Date: Dec 2008
Location: North San Diego, CA
Default More info on the Peavey PA 120


Here is a link to the PDF that has schematic info.

The unit is 21" wide, 11" deep, and 7-1/2" high

Weighs 30Lbs

Has bass-treble-reverb and volume on each channel.

Has master volume and reverb, footswitch for reverb.

I am in the san Diego area
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