Need Schematics for Girardin AL216 module

[Iyinx]

Hello, I've got a few Girardin AL216 modules on hand, recently I want to make some use with them. can you guys so kind to offer me the schematics?

Thank you very much!

View attachment 104890

 

[zamproject]

Hey
Unfortunately Girardin schemo are hard to find.
You should probably need to draw it by yourself, or at least an advanced block diagram.

AL mean for -Amplificateur de Ligne- this is a line amp.
The one you show have VCA gain element in the chain, used in broadcast for remote volume/control
Topology is simple if it's the same as I already see (line amp without VCA)
-Trafo input
-passive variable attenuator, with probably a switch that bypass to fixed attenuation (unity I/O gain) at VCA mark.
-buffer (probably single transistor)
-VCA section
-push/pull amp
-Trafo out

-supply is 24V input, with active onboard rail splitter, something like +/-10V (relative to +10V)

You should probably do a nice VCA compressor with this, by adding a SC circuit

At first I'll try to find the CV remote at the connector, send DC to see the scale used, then probably test the CV input with another compressor that have a CV link available.

cheers
Zam