Best way to get 12v from 6.3....

And still power the 6.3V heaters at the same time.

Seeing as the 12SN7 doesn't have a center tap, I can't do the wiring trick of the 12AX7...so how does one best go about extracting 12v from a 6.3-0-6.3?!

Voltage doubler looks about the best so far...

Or just get an additional trafo...
 
6.3-0-6.3V ? So your trans is CT'd?

well,6.3 + 6.3 is 12.6... You could do something like 0V-6.3V-12.6V by grounding one 'end' of the winding,using the 'center tap' for 6.3V,and the other 'end' of the winding for 12.6V.

Or.. keep the CT grounded,and run the 6.3V heaters from the 0 and 6.3V taps,and connect the heaters of the 12V tubes across the 6.3V taps..


That make any sense? :confused:
 
Course, there are many permutations as to how it can work...just was wondering if anyone had their 'tried and tested' method. I was originally going to go for the 6.3 in parallel, and then the 12V in series with teh two 6.3s...oh to hell, I'll try each way and let you know :D

Thanks for the advice

L