Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Misc Schematics and Layouts => Topic started by: Platefire on April 04, 2011, 06:59:37 pm

Title: Looking for Baldwin Model 71P Organ Schematic
Post by: Platefire on April 04, 2011, 06:59:37 pm

Picked up a Baldwin Tube Organ and salvaged the amp out of it after I played around with the organ for a while. It's two EL84's, two 12AX7's and 5U4. I've searched the net pretty thoroughly and no schematic. If anybody has a lead on a 71P Baldwin Organ tube amp schematic, I would appreciate any info on that. Thanks, Platefire

Title: Re: Looking for Baldwin Model 71P Organ Schematic
Post by: RicharD on April 04, 2011, 07:04:56 pm

Good luck.  Baldwin kept their cards close to their chest.  Schematic are HARD to find.  IIRC, somebody somewhere has "some" Baldwin schematics for sale.  I ended up just gutting for transformers and building from scratch.  Baldwin transformers = good stuff for guitar amps.

Title: Re: Looking for Baldwin Model 71P Organ Schematic
Post by: sluckey on April 04, 2011, 07:05:55 pm

Can't help with the original schematic but that topology screams Marshall 18W or Stout to me.

Title: Re: Looking for Baldwin Model 71P Organ Schematic
Post by: DummyLoad on April 04, 2011, 10:13:16 pm

or matchless...

 :icon_biggrin:

Title: Re: Looking for Baldwin Model 71P Organ Schematic
Post by: Platefire on April 04, 2011, 10:54:33 pm

OK, thanks! Kinda what I figured on the schematic. I've been looking at the original circuit trying to figure it out and I'll say they got some weird stuff going on in there. It's that real jammed up P to P and hard to see whats going where and they got some diodes in there? It's looking like it needs to be gutted and start over. Platefire

Title: Re: Looking for Baldwin Model 71P Organ Schematic
Post by: DummyLoad on April 05, 2011, 12:25:33 am

+1 with buttery and slucky - gut and new ckt.

--DL

Title: Re: Looking for Baldwin Model 71P Organ Schematic
Post by: Custom_Amp_30 on August 24, 2020, 01:48:40 pm

https://www.justradios.com/baldwin
This place offers that schamatic for the Baldwin 71p or any model organ info or knows where it is located.