How to get 120v isolated from lm3886 power supply

[nightanole]

I have a chipamp.com kit with a 22-24vac X2 (havent load tested it yet) transformer. I also need to get 100-150vdc for the B+ of my tube buffer. Since its a tight fit i really dont want to install yet another transformer in the case. Could i use just a full wave voltage doubler to get the B+ from the dual 23vac secondaries?

File:Full-wave voltage doubler.svg - Wikipedia, the free encyclopedia


I figure that will get me about 130vdc.

 

[star882]

You can definitely use a voltage multiplier. Or you can use a boost converter.

 

[geraldfryjr]

a voltage quadrupler will get you 124v to 135v but only use the positive side winding If you are going have a split supply. jer