One of the relics restored for guitar

This is a Stromberg-Carlson AU-57 and one great amp for both acoustic and electric guitar, as well as lap steel I might add. It’s likely in the 50-watt range with 1 input channel that’s a bit hotter than the others, 3 mic channels, Bass, Treble/On-Off.
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2 Responses to “One of the relics restored for guitar”

  1. Tom m says:

    your post Re the Stromberg-Carlson AU-57 has inspired me to dust off an old amp a trash picked ( I think its tyhe same one ) and try to restore it any tips for a beginner?

  2. jbs5280 says:

    Tom, go for it man. I have almost set up my Marshalls and Fenders as collectibles only and been playing these things for the past couple of years. I just got a Masco ME-18P that I sent Keith pictures of a little while ago and will post it on the site in the next day or so.

    As far as tips, I would get it to someone who is a good tube amp tech. They should bring it up on a variac so you don’t blow trannys etc. It’s likely caps are bad in some areas but that depends a bit on usage although just sitting without being turned on from time to time is actually more harmful to these amps because of the type of caps used. I’m pretty sure I have a schematic for the AU-57 if you need it. I may have actually sent that to Keith too for posting on harpamps. Let me know man but get that Stromberg hummin’.

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