Sami from SN-Audio wants to build a lunchbox-style preamp desk and asked me to modify his MS-Audiotron mixer preamp modules to have an output volume control instead of pan control. These preamps are part of a bigger mixer with group/fader/metering modules. After little research it seemed doable so I got to work. All it took was desoldering existing pan potentiometers and running cables from preamps fader-control to the desoldered pan pots. Works like a charm! Now Sami can even crank the input gain to distort and still control the output volume.. :)
In the pictures you can see the goodies inside: Lundahl mic/line transformers..