Well, I just took the plunge and ordered two Duelund 0.56uF 200V Cast Copper Foil caps for my Supratek Chenin tube preamp.
I have extensively modded this preamp, moving from 6SN7 output tubes to 2C22, going from resistor/cap bias to diode bias with Cree SiC schottky diodes, and using a constant current source at 15mA on the plates of the 2C22. I've been running Mundorf Supreme caps on the output circuit and I think the sound is close to perfection as is, but I couldn't resist the urge to find out if there was more to be had.
Let the waiting begin...
I have extensively modded this preamp, moving from 6SN7 output tubes to 2C22, going from resistor/cap bias to diode bias with Cree SiC schottky diodes, and using a constant current source at 15mA on the plates of the 2C22. I've been running Mundorf Supreme caps on the output circuit and I think the sound is close to perfection as is, but I couldn't resist the urge to find out if there was more to be had.
Let the waiting begin...