Thursday, August 17, 2023

The New Stereo Single Ended 300B Power Amplifier - Part 2

 Hi!

In part 1 about the new Stereo Power amp in tower chassis, I showed the initial construction steps. Here photos of the finished amplifier.




It contains the entire amplifier including power supply in a single chassis 305*305mm, 400 mm high (plus height of tubes and feet.



The amp is configured for 8 Ohm speakers. Driver tubes are 6SN7 with both halves in parallel to get lower impedance. The drivers are transformer coupled to the output. Rectification is done with a bridge of 6AX4 damper diodes.



It already arrived in its new home where it will be used as part of a multi amplifier system together with 801A drive 300B monos.



So a matching color scheme was used to fit with the amps which were already in place.



Best regards

Thomas





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