Please help me with my RM20B

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mhartman

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Jun 15, 2006
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Hey all,

I'm loving my Randall RM20B, but it didn't come with a manual. I have asked Randall to e-mail me one (several times), but they have blown me off. I'm looking for the Bias instructions for the amp. Particularly, what are the voltage ranges for the EL84 tubes that are in it? Also, is there anything else in the manual that isn't in the other MTS amp manuals that are available online?

Thanks in advance,
Mike
 
you can download the manual at randallamplifiers.com and it will give you all the bias info on the tubes as well. the online manual should be identical to the original.
 
Actually, Randall doesn't have the RM20 manual posted (I wish that they did).

Mike
 
15mV to 20mV for the el84's in an RM20B.

(according to my RM20B Manual)

Good luck!
 
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