Members louloomis Posted December 21, 2008 Members Share Posted December 21, 2008 Hi. Right now I have a pair of "Winged C" EL-34's (markings are 0423) in my amp (a Musicman 112 RD 100 - which has a solid state preamp section and tube power amp section). If start using Tung-Sol EL34B tubes in the amp, am I going to need to re-bias it? Thanks,LouLoomis Link to comment Share on other sites More sharing options...
Members Tube_Tone Posted December 21, 2008 Members Share Posted December 21, 2008 I dont think you do but Im not sure Link to comment Share on other sites More sharing options...
Members knucklefux Posted December 21, 2008 Members Share Posted December 21, 2008 if you change the power tubes, you need to bias the amp...even if you use svetlana EL34s (svetlana="wnged c") Link to comment Share on other sites More sharing options...
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