quad eight schematics?

Submitted by anonymous on Tue, 07/01/2003 - 01:21

Im looking for a schematic for a quad eight CA 127. Anybody gots? Im looking to turn these amps into mic preamps, has anyone done this? Suggestions on a decent mic transformer? Im sure jensen makes something that will work, but wondering if sowter or lundahl might have one that will work.

thanks!

dave

Comments

anonymous

This might be up your street Dave. Silonex Inc. Then again....

This might be up your street Dave.

Silonex Inc.

Then again....maybe not.

peter

Tue, 07/01/2003 - 04:08 Permalink

anonymous

I have a schematic for CA27.. The PCB (I have the card, too) has

I have a schematic for CA27.. The PCB (I have the card, too) has extra holes for components, so it might be the 127 is related to the 27..? It'll take some time to scan it though.

Jaakko

Tue, 07/01/2003 - 04:54 Permalink

anonymous

I definitley need some info on the CA27 cards. I have some that

I definitley need some info on the CA27 cards. I have some that are fully populated and they appear to be a dual amp design, transformerless. are there any QE experts online? Id love to know what these were used for in the consoles. Im in the process of building an 8x2 mixer out of CA127 amps, but am trying to figure out whether or not these could work in a design.

anyone?

thanks!!

dave

Tue, 07/08/2003 - 15:27 Permalink

anonymous

If you can wait for a couple of weeks I'll get'em scanned for yo

If you can wait for a couple of weeks I'll get'em scanned for you - all of you. Just tried them for the first time last week. Sounded great!

Jaakko

Tue, 07/08/2003 - 16:11 Permalink

Gold

I have a few mic transformers from some QE 312's that I'm not us

I have a few mic transformers from some QE 312's that I'm not using. I'm in NYC so drop me a line. plush at att.net

Tue, 07/08/2003 - 21:34 Permalink

Tungstengruvsten

I've got a 310 EQ - anyone see a schematic for it around?? chee

I've got a 310 EQ - anyone see a schematic for it around??

cheers,

Eric

Tue, 07/08/2003 - 22:49 Permalink

ggoerss

ive got a schematic for a ca-127 if anyone wants it just let me

ive got a schematic for a ca-127 if anyone wants it just let me know and i`ll scan it

Wed, 07/09/2003 - 07:18 Permalink

ggoerss

just found the schematic for the 310 eq section as well if anyon

just found the schematic for the 310 eq section as well if anyone needs it

Wed, 07/09/2003 - 07:20 Permalink

Tungstengruvsten

Hey George; I'd love a copy of the QUad 8 310 schematic - I jus

Hey George;

I'd love a copy of the QUad 8 310 schematic - I just got one recently and was looking to start racking it sometime in August....

If possible could you email it to stumbler@rogers.com

thanks!!!

Wed, 07/09/2003 - 09:14 Permalink

ggoerss

will scan these in next couple of days and send them out forthwi

will scan these in next couple of days and send them out forthwith.

Wed, 07/09/2003 - 15:54 Permalink

anonymous

I need a CA127 schematic as well. Any suggestions on the input

I need a CA127 schematic as well. Any suggestions on the input tranny?

Mon, 12/22/2003 - 22:48 Permalink

anonymous

Everything from Q8 wasn't different. They used discrete op amps

Everything from Q8 wasn't different. They used discrete op amps in most of the circuits. The AM4 as used in the 300 series and the AM10 as used in the 700 series. The CA stuff I've seen seems to be the AM10 op amp... Like you can use the 990 in different circuits or the API2520 in different circuits, like a mic pre or the API compressor, or the API EQ or the latter Pultec EQ for a gain make-up instead of the tube circuit....

Repeat