Had a client come in with two of the AMI Oliver Archut C12as. He said they worked intermittently, now no longer work.

My first job was to measure the PSUs - plate was fine, pattern was fine, continuity for ground and signal pins to the XLR. Heater was -1.8V and -0.6V on the two PSUs. not great, Bob.

Opened the PSUs and immediately found the problem. both had fa...

Hola a todos!
Soy de la provincia de Santa Fe, de la ciudad de Rosario, ciudad conocida mundialmente por ser el lugar donde nacieron Lionel Messi y Ángel DiMaría.
Desde pequeño fui aficionado al audio, estudié ingeniería electrónica en la UNR (Universidad Nacional de Rosario). Luego trabajé en forma independiente realizando servicio técnico, diseño de equipos de ilimina...

Please..any help would be appreciated. i bought an original u47 ,9 yrs ago with a non original psu. The psu has a smaller 5 pin connector on it opposed to a 6 pin tuchel.
Then i bought a new psu from Telefunken as my older one had a humming noise from it. i know little of electronics but i can solder.i just need to know what colour of wires go where on the connectors.
i ...

Hello,
Does ANYBODY have a schematic for the RCA BX1D or E power supply? Used to power the RCA BA 11A and a few others.
Have searched high and low for the schematic!
If anybody has a link or schematic would really appreciate!
Thanks!
John

I'm looking for pinouts / schematics / information on the Siemens C4 desk.
Like in the first picture in this post.
http://www.gearslutz.com/board/so-much-gear-so-little-time/368651-siemens-c4-console-has-landed.html