Lerxst Posted June 4, 2002 Share Posted June 4, 2002 Hi Myles. Craig here. Can you tell me what I need to do to run EL34s in my Tonemaster? I'm running 2 6L6s in there now with no problems; I think it's self-biasing, so can't I simply substitute EL34s for the two valves that are in there? Thanks. Link to comment Share on other sites More sharing options...
rog951 Posted June 4, 2002 Share Posted June 4, 2002 Gotta be a Rush fan... None more black. Link to comment Share on other sites More sharing options...
cincinnatirock Posted June 5, 2002 Share Posted June 5, 2002 If it is a self biasing amp, there should be a switch in the back of the amplifier that will allow you to specify whether you want to set the bias to 6L6 or EL34's. If it is a self biasing amp then you can just replace the tubes and then flick the switch. If it is not a self biasing amp, there is a product that is called yellowjackets (not sure who makes 'em) that will allow you to switch from 6L6 to EL34 without resetting the bias. Otherwise, you need to take your amp to a technician and have them set the bias. Link to comment Share on other sites More sharing options...
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