Silvertone 1330 - What's this mod?

[tigerzilly]

A friend brought over an old Silvertone 1330. It looks like a widow maker for sure. I told him it needs an isolation transformer to be safe. The output of the amp appears to be modded. Anyone seen an output mod like this before?

[eschertron]

Without knowing what the circuit looks like, or what may have been connected to all those loose wires, I'll hazard that the owner wanted reverb.

Doesn't cost me anything to be wrong

[olddawg]

My guess it was done to use the amp as a distortion device when cranked into another amp.

[tigerzilly]

Here are the guts of it. I'm pulling the OT and gonna test.

[tigerzilly]

Mod gone. Amp restored and sounding good!

[olddawg]

Excellent! Now spend $12 and buy an isolation transformer for it.

[The Dude]

Excellent! Now spend $12 and buy an isolation transformer for it.

Pretty sure he did that already.

(from the post above)

[olddawg]

Cool.. the picture was distorted on my device.