Cesar Diaz cd100 scheme

[Kam.filinski]

Im looking for layout of cd 100 cesar diaz. Maybe someone can share? THANKS IN ADAVNCE

[Roe]

hard to find. like a moded twin reverb though

[rooster]

I had a Diaz protype here of this amp. A client had purchased it in NYC off the floor of a store, can't remember the name of the store. But he did tell me that he had called them about it a few months later, either asking for a more formal receipt or some info (this was in 1998). He told me the guy on the phone said, "What? What are you talking about?" My friend explained what it looked like and that it was signed by Cesar Dias. "Who sold you that amp? It was not for sale, you bring it back here!" My friend tells the store guy that he bought it fair and square, that it was his, and then he hung up. It was assembled in a SFPR chassis. Cesar had replaced the rectifier tube with another 6L6 and managed to shoehorn the 4th 6L6 in, too. A BFTR OT, as well. The faceplate was a faded brown gold plexiglass affair with hand-written black lettering etched into the backside of the plexiglass at the knobs - and these were somehow etched backwards into the plexi such that it read forward. Kinda wondered about that at the time. Loaded with an EV12L. The circuit board was the original piece I think, and he covered it with a brown spray foam, such that you couldn't see the parts. This foam was slightly eroding, kinda fragile, and one day it will be gone, I think. It needed some work, it had some noises, but there was nothing I would do to it because of the possible value of the amp. He paid $750 for it he said. He moved to Colorado a year later and I never saw or heard from him since.

What I regret most about this is I didn't have the benefit of a cell phone camera to take any pictures. I thought I would see it again, but I never did.

[M Fowler]

I don't have a schematic for the CD100 but did build a Diaz PT-20 a few years back based of pictures of a friend's amp. It's was just a Fender Deluxe Reverb with boost switching.

Looking at pictures of the CD100 it appears to be a Fender 100w reverb with pull boost on treble knob, pull cut on the bass knob, and master volume.

Mark

[Mark]

There is one on Reverb at the moment.

https://reverb.com/item/1354095-diaz-cd ... es-special

[Roe]

the pics basically shows a tweaked twin reverb without tremolo or normal channel (or mid control).

[erwin_ve]

I can't see a pcb in there but old school eyelet board.

[Mark]

the pics basically shows a tweaked twin reverb without tremolo or normal channel (or mid control).

The main filter caps appear to be two 220uF caps in series. The grid leak/bias resistors are not the customary 220K, but 100K, this would be due to the four 6550’s used in the amp. The anode resistors of the PI stage are both 100K.
The grid leak resistors are 330K instead of 1M. The tail resistor is 22K, with a 100 ohm to ground.

[Roe]

the pics basically shows a tweaked twin reverb without tremolo or normal channel (or mid control).

The main filter caps appear to be two 220uF caps in series. The grid leak/bias resistors are not the customary 220K, but 100K, this would be due to the four 6550’s used in the amp. The anode resistors of the PI stage are both 100K.
The grid leak resistors are 330K instead of 1M. The tail resistor is 22K, with a 100 ohm to ground.

yes,essentially a twin with 6550s and different transformers

[Mark]

the pics basically shows a tweaked twin reverb without tremolo or normal channel (or mid control).

The main filter caps appear to be two 220uF caps in series. The grid leak/bias resistors are not the customary 220K, but 100K, this would be due to the four 6550’s used in the amp. The anode resistors of the PI stage are both 100K.
The grid leak resistors are 330K instead of 1M. The tail resistor is 22K, with a 100 ohm to ground.

yes,essentially a twin with 6550s and different transformers

Did you see the picture of the power transformer?
It’s massive, it’s made by Mercury Magnetics. I didn’t look too hard at the output transformer.

[Mark]

More pics

50331F97-2604-401E-A374-3C94CB1E3939.png

E70C938C-7868-4580-847E-F169F8DB0365.png

E7AEB06B-62D7-4B58-9A53-916B33220EA6.png

3D013230-8DDE-430A-A3FD-B87F14C4A15F.png

[Mark]

Still more pics

The amp has an effects loop and two sockets for remote switching.

WOW!!!

This item has sold. That’s an expensive Twin clone.

5956A596-9597-4127-8F7C-E3535B7F8980.png

FD7DC2A8-191C-4024-BFFB-3CB9FB4B6E6C.png

914E95C0-F6F3-4AE7-A2B1-3D7BAF211134.png

[hitchcaster]

hmmm..... warrens has 2 output transformers...

[Mark]

hmmm..... warrens has 2 output transformers...

Can you see that in the photos?

I can’t see it myself, if you can point them out to me that would be good. I don’t think there’s a real advantage to having two output transformers.

[hitchcaster]

diaz made warrens amp... ive seen it... this is made by peter i assume and he changed it from 2 OT's to one for whatever reason...