Please Look at my circuit

[skybird]

I would like to Build GG Pre-amplifier£¨Grounded Grid£©.Please look at my circuit,It can Output +200V and -200V Voltage£¿Any one have other better circuit?

[Merlinb]

You have connected the diodes for half-wave rectification. Full-wave rectification would give you lower noise and better regulation.

[astouffer]

You have connected the diodes for half-wave rectification. Full-wave rectification would give you lower noise and better regulation.

Its a full wave voltage doubler. You're right about regulation but if hes powering a preamp that shouldn't take more than a few mA.

[skybird]

Originally posted by Merlinb
You have connected the diodes for half-wave rectification. Full-wave rectification would give you lower noise and better regulation.

How can i uce Full-wave rectification output +200V and -200V Voltage£¿

[ja2dhc]

Originally posted by skybird

How can i uce Full-wave rectification output +200V and -200V Voltage¡¦

Here is Full-wave configration. DC+/-250V is obtained if AC200V winding is used.

[skybird]

Originally posted by ja2dhc


Here is Full-wave configration. DC+/-250V is obtained if AC200V winding is used.

Thanks ja2dhc! But I like to use all the tubes.please lool at my another Circuit.

[ja2dhc]

Originally posted by skybird

Thanks ja2dhc! But I like to use all the tubes.please lool at my another Circuit.

I believe two tubes can substitute for two silicone diodes.

[Merlinb]

Originally posted by astouffer


Its a full wave voltage doubler. You're right about regulation but if hes powering a preamp that shouldn't take more than a few mA.

I think you are mistaken. It is a bi-polar design.