Silvertone Organ Amp schematic

Tube or solid-state, this section goes to eleven!
Post Reply
User avatar
RLBJR65
Resistor Ronker
Information
Posts: 280
Joined: 30 Jun 2007, 16:07
Location: USA
Been thanked: 3 times
Contact:

Post by RLBJR65 »

I was going to make a guitar amp out of this but the PT is bad :( Funny it worked okay when I got it a month or so ago, but smoked when I pluged it in the other day to check voltages. Oh well... bought it cheap at a yard sale and the organ is air operated so it still works.

Here is the schematic https://img524.imageshack.us/my.php?ima ... amprd5.gif

The unmarked pot (tone control?) was mounted on the back, I lost the sticker but it was labled something like adjust for Hall / Room size.
Inductors have no markings that I can see.
Volume pot was on the foot pedal.
On the input It had what looked kind of like old telephone speaker/mics that were mounted under the air chamber.

Point to point confuses me but I think I got it right. If anyone sees anything wrong that I should look at again please let me know.

Anyone have the transformer specs?

BTW here are a couple of pics I just found. http://akroncanton.craigslist.org/msg/381946616.html
DAMN I drove right through Akron YESTERDAY! It's not worth driving back 2 1/2 hours for.

Richard

User avatar
CS Jones
Information
Posts: 44
Joined: 05 Jul 2007, 06:31

Post by CS Jones »

Richard, hi. A few things.

So this schem is yours? You drew it out? (if so, kudos to you for the time spent. It's a lot of work and we often make mistakes. That's just part of learning).

You're looking for a new Power Transformer? The OT is ok?

You saw and smelled the original PT smoke?

Did you plug your fiddle in and play through it before it blew?

User avatar
RLBJR65
Resistor Ronker
Information
Posts: 280
Joined: 30 Jun 2007, 16:07
Location: USA
Been thanked: 3 times
Contact:

Post by RLBJR65 »

Thanks CS

It worked when I first got it, never plugged a guitar into it though.

Unfortunately I saw, heard and smelled the PT sizzle.

I'll probably end up just scavenging the AT and sockets for another project.

Post Reply