Acoustic Control 150B DC offset issue

[olegeiser]

Any chance of a photo showing the installation? Many thanks

[TigerAmps]

The input board with the gyrator mounted:


The Blue wire is Vcc; The Yellow wore is Vcc/2; Ground is picked up off the preamp board.

The power supply on the right:


The Red is (+); black is (-). I run the two wires from the main filter cap (red and black) to the dropping resistors mounted on the side the power transformer.
The input board in the center is the modified one. You can see the yellow and blue wires powering the vector board.

[olegeiser]

Many thanks for the pics

Many Thanks!