Anybody know the RM20 plate voltage?

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Anybody know the RM20 plate voltage?

Post by notyet » Thu Jan 09, 2020 3:14 pm

Does anyone know the plate voltage in an RM20?

I recently got a couple of pin rearranger adapters that allow you to use a 6v6 in an EL84 socket or a 6aq5 in an EL84.

These aren't yellowjackets (which go the other direction: EL84 in octal socket).

I'm going to have to pull the chassis anyway for another reason but if someone knows they can ease my curiosity in the meantime.



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Re: Anybody know the RM20 plate voltage?

Post by DonP » Sun Feb 02, 2020 7:48 am

I'm guessing you want to know the voltages to see if your 6V6 tubes won't get destroyed?

I'm curious, the EL84 is a 9 pin tube. The 6AQ5 is a 7 pin tube. Do you have a separate converter for each?

There isn't a way to A/B a 6AQ5 against a 6V6, but what I've read is that the 6AQ5 is the same as a 6V6 reduced in size and voltages. I have a Gibson GA-5T with a push pull 6AQ5 output section and it is sort of 6V6ish (from what I can remember). But remember this amp is old and weak and has an Alnico speaker - all things that make is smooth sounding.
10 modules.

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