Help for a newbie - Wurlitzer 4600...

[Paul-in-KC]

Hello All,

I am new to amplifier circuits. However, I can read schematics - and I have built simple circuits by referencing manufacture data sheets and sample applications. That experience was using integrated circuits to build interfaces (input and output) for a home-grown automotive engine management system that I built based on a Motorola MPC-555 CPU. I picked the MPC-555 because it was engineered for engine control and as such, had almost all of the required hardware on one chip. I just had to build a few interfaces and MOSTLY write software.

I have recently become interested in building tube amplifiers – mostly from seeing Glen Kuykendall’s videos playing a TrainWreck Express (too cool).

Okay, so here’s my “question” (sorry for the long intro).
I am going to get “the guts” of a Wurlitzer 4600 and would like to use the amp and speaker to make an amp to use with a Fender Rhodes electric piano.

I imagine this should be very simple (at least conceptually) but would like to know where I might find some good reference information for research and general guidance.

Also – opinions if this is a good/bad idea for first project.

Thanks very much,
-Paul

[Phil_S]

Organ conversions can go well. I've got a feeling it's a pretty steep incline on a first project. See if you can find a schematic. Check the internet, and check SAMS Photofacts. Many public libraries have subscription service and will get it for you at no charge, if you can be patient. Depending on how simple or complicated this is, some judgement can be made as to whether it is a project that might be a bit too challenging for someone new to this. If you can't find a schematic, you could be in for some detective work.

Start here? http://www.nshos.com/Wurli1.htm

[Paul-in-KC]

Organ conversions can go well...

Start here? http://www.nshos.com/Wurli1.htm

Thanks Phil.

Interesting link on the 4600 series.

I'll start there.

I think that the fellow that I am getting the "guts" from also has schematics, but I'm not sure. I don't have the pieces yet, but I should have the parts before too long.

Thanks again.

[ToneMerc]

Personally, I would start here. It has all the advantages to make a great foundation.

http://www.rjguitars.net/Eagle_100.html



TM

[Paul-in-KC]

Personally, I would start here. It has all the advantages to make a great foundation.

http://www.rjguitars.net/Eagle_100.html

TM

Thanks TM,

I have already "found" RJ Guitars and I'm planning to purchase a project from him (TrainWreck Express, or maybe Rocket, or maybe a Dumble ODS).

But the Wurlitzer 4600 parts "opportunity" came up and I thought that it would be a good way to get started.

Granted it's not as straight forward as a kit, and maybe it won't turn out to be a good starter project.

Thanks for your input.
-Paul

[Paul-in-KC]

All,

I finally picked up the organ parts this past Saturday.

Here are a couple of pictures. The parts are from a Wurlitzer 4602.

Here is the amp chassis...

[IMG768]http://i1178.photobucket.com/albums/x37 ... 600amp.jpg[/img]

...and here are the speakers...

[IMG954]http://i1178.photobucket.com/albums/x37 ... kers-1.jpg[/img]

I have a couple of issues/questions that I'll post later.

Thanks.
-Paul[/img]