NAD - 1981 JMP 2104 (thoughts?)

[psychic_fuzz]

I've got a thread started on TGP about the amp but figured I'd run it past the true Marshall freaks here (I mean that with all due respect )

Here's the orig thread if your interested: https://www.thegearpage.net/board/i...hall-jmp-2104-thoughts.2592136/#post-39592040

Basically finally made the leap and grabbed probably my all time bucket list amp. Would love to hear your thoughts on originality and all that.

It did come with EL34's so I'm assuming it's been modded.

Any insight is greatly appreciated, thanks!

 

[GIBSON67]

Love the small check amp/cabs! Congrats and good job!

I see the speakers are G12T75's and aren't original. 1993 for those.

 

[psychic_fuzz]

Love the small check amp/cabs! Congrats and good job!

I see the speakers are G12T75's and aren't original. 1993 for those.

Yep, I knew they weren't orig. But thanks for the date was just looking up the code in another tab haha

Will be trying to track down some G12-65's at some point

 

[BlueX]

HNAD, that's a very sweet and sexy amp! I love these "2204 2x12" combos.

I bought a similar earlier this year, about 1 year older. Link to my thread below if you want to compare. It's a Scandinavian model, with some extra fuses, and stock EL34.

NAD: 2104 - Couldn't get it out of my head

Got a new Marshall today, 2104 from 1979/1980. Saw a 2104 about a month ago (see thread below) and now another popped up so I got it. S/N 05012L which should be 1979 (L). Inspection label dated 5/1/80 (5th January 1980?). Speaker code T3120 which seems to be the correct type (G12-65, Ceramic...

www.marshallforum.com

 

[psychic_fuzz]

My only other concern is this white oxidation type stuff that is on the OT and the PT. The choke doesn't seem to be effected by it. Is this cause for concern or do yall think it's just environmental?

(Sorry for the bad camera angles)




Edit:

Additional question do you think it's worth changing these diodes, and what diodes are these? (1n4007?)

 

[Trouble Free]

Nothing to worry about, don't change parts for the fun of it

 

[psychic_fuzz]

Nothing to worry about, don't change parts for the fun of it

They just looked a little rough. Otherwise I agree, I wouldn’t bother.


Any thoughts on the “oxidation”?

 

[Trouble Free]

Pretty normal, I have seen worse. I might clean them up a little to slow the process but it doesn't look bad enough to be a concern either way.

 

[psychic_fuzz]

Pretty normal, I have seen worse. I might clean them up a little to slow the process but it doesn't look bad enough to be a concern either way.

I forgot to specify, I was referring to the white oxidation on the OT/PT, but either way thanks for the feedback!

 

[Trouble Free]

I was too