Tube power supply question

[jasonober]

I'm preparing to build a tube driver/ tube screamer pedal in one enclosure and run the circuits in series with the TS in front.  Is there anyway to drop the voltage from the power supply of the tube driver to 9v so that i can power them with 1 power supply?

[Peter Snowberg]

The easiest way would be to drop the filament supply to 9V using an LM7809 or an LM317, but you might also want to see what the TS sounds like with a 12V supply.

Does the tube driver use a DC supply for the filaments?

[jasonober]

i'm sorry i'm new to this but i think the tube filaments are dc
http://www.generalguitargadgets.com/diagrams/tube_driver_lo.gif

that's the scheme i'm planning to use for tube driver
http://www.generalguitargadgets.com/diagrams/ts_lo_808.gif

and that's the sceme i was going to use for the tube screamer


i thought that 12v would be too much for the ic in the tube screamer

[Peter Snowberg]

It will have no problems with the extra voltage and the only side effect will be a slightly modified tone which you may like better or worse. Don't you love those ambiguous answers?

Yes, the filaments are running from DC.

Build away!

(and if you have any more questions, just ask. )

[jasonober]

thanks for your help.   now i just got to wait for my stuff from mouser