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Erwin Rosheuvel
Erwin Rosheuvel's picture

Production date/year MM 212 HD One Fifty

I am looking for the production date/year of my Music Man 212 HD One Fifty guitar amlifier.
Is it possible to find this, based on the type plate - see picture attached - ?

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mm210
mm210's picture

Nothing available from the

Nothing available from the plate but the fact that it's a 150 dates it late in the stratosphere. Look at the speaker codes and the transformer numbers and even the type of tubes (if original) and that will help MM's are always a mystery wrapped in supposition surrounded by mystique. Also a little luck! Oh crap, an export on top of it. Uh, Lars! Y'all out there! Mike.

Erwin Rosheuvel
Erwin Rosheuvel's picture

MM production date

My MM is currently in repair. I have asked the guy who does the repair to check if he can find an indication of the production date. He looked like someone who knows what he is doing, so fingers crossed...

RD112
RD112's picture

MM production date

It might be pencilled with a sharpie marker on the circuit board once you have it opened up. Otherwise, speakers, transformers and potentiometers should all be date coded if original.

Erwin Rosheuvel
Erwin Rosheuvel's picture

I've got it!

The guy repairing the amplifier dated it based on the number on the trafo:
- 606 (manufacturer is Shumacher)
- 023 (wk 23 of 1980)
Thank you all for the assistance in solving this "mistery"

RD112
RD112's picture

MM Production date

Did the repair tech notice anything written on the circuit board or stickers inside the chassis??

Erwin Rosheuvel
Erwin Rosheuvel's picture

MM Production date

Apparently, he got it from the transformers

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