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Old 20th March 2010, 12:28 AM   #1
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Default Help with input stage driver for EL84 output stage

I am thinking of a paralleled EL84 output stage. SE triode connection.

I am not sure of power. Maybe 10w triode. Thinking too of having a UL connection too.

Also, want to do transformer coupled. will 1 EL84 transformer coupled be enough to driver the paralleled output stage?

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Old 20th March 2010, 01:06 AM   #2
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PSE triode connection won't get you 10W I am afraid, More like half of that. PSE UL might get you pretty close. Are you suggesting using the an EL84 as the driver too?

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Old 20th March 2010, 01:38 AM   #3
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PSE triode strapped with ~300 V B+ should get you 3.5 W, about 9W in pentode and somewhat less in UL.

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