V2 of zeta-sounds Maestro PS-1A clone

This is what’s to be the V2 of the PS-1A clone. It’s got a new main circuit board with onboard in/output jacks.

MaestroPS-1A Clone zeta-sound
Main circuit board

Here’s the circuit installed in the chassie.

MaestroPS-1A Clone zeta-sound
Maestro PS-1A V2 clone

/Krister

Malfunctional Zachry D250 mono block

Here’s a Zachry D250 solid state amplifier. It stopped working producing only a 100Hz noise. Look at them blue filter caps, seems a bit swollen.

Zachry D250 repair
Zachry D250

Here’s a picture from the bottom of the caps.

Zachry D250 repair
Zachry D250

Those caps are out of date. Had a hard time finding 15000uF 63V caps with a diameter of 35mm. Finaly found and ordered F&T :s with the right values but a diameter of 40mm. I should be able to fit hem.

/Krister

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