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Wednesday, January 24, 2018

845 Mono Amplifiers - Part 4


In part 3 I showed photos of the finished mono blocks. Here some more views especially some with the amp turned on.

The amps are in the tower chassis, with only tubes on top.

The 845 is placed in the middle at the front...

...for a commanding presence which this mighty tube deserves!

The back side with inputs and outputs:

The amp in operation:

At night with the lights off:

Although the plate appears to be red plating, it is not really.

This is due to long camera exposure and the sensor capturing infra red.

Side view:

Best regards



  1. Hello Thomas and congratulations, A curiosity .... what kind of interstage transformer is used, thanks ..