Proper biasing Threshold SA/1s

[Mikerodrig27]

There you go. So just make sure they are rated for the voltage that you need.

 

[RobertS61]

Clear! Thanks both

 

[RobertS61]

You would likely need some sort of soft start. I can't remember if my S/500 came with a thermistor on the mains or not. The power supplies are kind of primative on these old dogs.

Hi Mike,

For the time being I now use a 23 Amps Variac from Philips as a manual soft start which works fine and has the benefit of keeping the AC Voltage at 220 Volts as specified for my amps.
As you pointed out to me a snubbercircuit would be a beneficial add-on so I contacted user rhthatcher about this.
I also found the Clarity caps you suggested and I probably gonna order eight 10uF caps from them.

Thanks again for the help!