Phono preamplifier with tubes (2014)


This is my recently built Phono pre-amplifier with tubes.

Power supply is from an external filtered 12 Volt DC switchmode adapter, the filaments of both E88C tubes are connected in series. Another internal switchmode converter is used to generate the anode voltage of about 200 Volts (not visible on the photos).

2014-01-20 12.42.59

2014-01-20 21.52.33

2014-01-19 17.10.51

2014-01-19 18.57.30