Challenge with Phase Splitter

[gerrittube]

I rebuilt this stage and it’s OK now with a 6SN7. I haven’t found a faulty resistor, so I haven’t found a real cause. My B+ is 600 VDC, with 400 VDC for my driver and phase inverter. All regulated and very stable.

Next thing is to compare this phase inverter with a MOSFET phase inverter. Balance with the directly coupled MOSFET stage seems to be even better. Still work in progress!

Regards, Gerrit

 

[Merlinb]

I rebuilt this stage and it’s OK now with a 6SN7.

Called it.