Voltage Regulator - 120v

[30 Ounce]

WZ68 Copper Cap

Still has vdrop of 17v but will supply 450ma.

 

[rayma]

This one may only drop half that voltage at half the current. I suspect they use a series resistor to get the voltage drop. So would recommend going with the single 5AR4 equivalent rather than this two 5AR4 sub.

 

[stratus46]

Use a small transformer to buck the input AC voltage down.
You get -5% with a 6.3VAC filament transformer, or -10% with a 12.6VAC unit.
I'd go with the -10% option.

The transformer's secondary current rating should be more than the amplifier.

I've tried the buck transformer and it works fine. What I haven't tried is to add a resistor in series with the buck transformer primary. With the right value resistor would the system provide some regulation if the buck voltage drops faster than the main secondary?

Happy New Year
G²

 

[rayma]

With the right value resistor would the system provide some regulation
if the buck voltage drops faster than the main secondary?²

Haven't seen that done, but you could try it and see.