Cathode resistors in a 5E3x2

[RC99]

Hi All,

Prepping for a 5E3x2 build. Weber chassis and Xformers. Was trying to get the skinny on what cathode resistor/cap format to go with. Will be using the 330-0-330 @ 200mA taps on the PT and intend to use a 5U4 rectifier instead of a 5AR4 and dropping resistor.

So for the cathode resistor, should I still go with a single 150/10W and 50uf/100v, or should I go with a resistor/cap per pair? I don't really have any intention of running anything but 4 6V6's. Thanks.

[Bruce / Mission Amps]

Probably better to use two 270-300 ohm resistors, one for each pair of 6V6s.
Originally I did use one big 150 ohm 15 watt resistor though. I had a bunch of them in those days.
A single 150ohm@10 watts is right at the edge of unnecessarily getting that resistor pretty hot.
The bypass cap or caps can be around 22uF to 100uF but use a 100v instead of a 50v.

[RC99]

Done. Thanks very much. I'm going to use the big 50uf/100v caps (ea.) on them. One last thing, should I still run the 6.3v center tap w/ 100Ω to one of the cathodes with the dial-resistor setup, or should I connect it to ground/PT bolt?

Assuming ground.....

(schematic)