PCB of gamma spectroscopy driver with USB

The board has adjustable high voltage converter with positive polarity output for 2-wire configuration of a photomultiplier probe. It has pulse amplifier with potentiometers to adjust pulse rise/decay time and amplification factor. Signal is coupled to USB audio chip that detected by standard Windows drivers as an general audio-device.
This gamma spectroscopy driver is directly compatible with popular software like Theremino, PRA and BecqMoni2011.