Production date/year MM 212 HD One Fifty

Erwin Rosheuvel

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 - ?

Music Man Equipment
MM 2-10-65

Member for

10 years 7 months
Profile picture for user mm210

mm210 Sat, 05/06/2017 - 16:32

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.

Full Name
Erwin Rosheuvel
Music Man Equipment
Music Man 212 HD (One fifty)

Member for

7 years 7 months
Profile picture for user Erwin Rosheuvel

Erwin Rosheuvel Mon, 05/08/2017 - 01:55

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...

Full Name
Rob Flindall
Music Man Equipment
112RD-100 with EVM speaker, built 1981

Member for

10 years 1 month
Profile picture for user RD112

RD112 Mon, 05/08/2017 - 16:02

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.

Full Name
Erwin Rosheuvel
Music Man Equipment
Music Man 212 HD (One fifty)

Member for

7 years 7 months
Profile picture for user Erwin Rosheuvel

Erwin Rosheuvel Tue, 05/09/2017 - 07:19

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"

Full Name
Rob Flindall
Music Man Equipment
112RD-100 with EVM speaker, built 1981

Member for

10 years 1 month
Profile picture for user RD112

RD112 Tue, 05/09/2017 - 16:26

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

Full Name
Erwin Rosheuvel
Music Man Equipment
Music Man 212 HD (One fifty)

Member for

7 years 7 months
Profile picture for user Erwin Rosheuvel

Erwin Rosheuvel Wed, 05/10/2017 - 02:30

Apparently, he got it from the transformers