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arnoldc 16th December 2003 02:31 PM

Parallel, single-ended Pentode. How?
I have recently completed a prototype single-ended Pentode amplifier using the 807 tube. Since it is still in prototype mode, i was thinking of modifying it to be parallel.

I have no idea on how to run single-ended pentodes in parallel. Can anybody point me in the right direction?



fdegrove 16th December 2003 03:13 PM


Basically you just wire the valves in parallel.

You'll need to reconsider your PS and OPT as well as RL is halved.

An example using two 2A3s:



arnoldc 16th December 2003 10:35 PM

hi frank, thanks so much. i was hoping it is just like that :)

...and my chokes too

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