Studio Mollan
Well-known member
- Joined
- Oct 26, 2011
- Messages
- 323
Hi!
I have a question. I recently bought two vintage Disa preamps. The same style as V72, actually compatible with the same pinout, connector and have internal psu.
Mine are a fixed gain version that I intended to hook up with a pad switch for the input and possibly also output but I then saw this in the only available schematic for this pre. (See photos below)
And here's the questions: is this a circuit for variable gain and is it safe in your words to try to copy this to my pres? Maybe add a few steps to get more control of the gain.
See below for complete schematics, zoom of the area of interest and the schematic for my pres in the same area.
/
Emil
I have a question. I recently bought two vintage Disa preamps. The same style as V72, actually compatible with the same pinout, connector and have internal psu.
Mine are a fixed gain version that I intended to hook up with a pad switch for the input and possibly also output but I then saw this in the only available schematic for this pre. (See photos below)
And here's the questions: is this a circuit for variable gain and is it safe in your words to try to copy this to my pres? Maybe add a few steps to get more control of the gain.
See below for complete schematics, zoom of the area of interest and the schematic for my pres in the same area.
/
Emil