M Mason Member Joined Jul 9, 2008 Messages 9 Reaction score 0 Apr 14, 2010 #1 Hi I'd like to add a bias control to my Studio 22+, to use different brands of EL84s best biased. Any wirings/bias mod descriptions around? Thanks for help'n'hints, Mason
Hi I'd like to add a bias control to my Studio 22+, to use different brands of EL84s best biased. Any wirings/bias mod descriptions around? Thanks for help'n'hints, Mason
T Tacoiardul Active member Joined Nov 24, 2009 Messages 39 Reaction score 0 Apr 14, 2010 #2 isn't the studio 22+ cathode biased?doesn't that mean that you don't have to re-bias it if you use other type of el 84?
isn't the studio 22+ cathode biased?doesn't that mean that you don't have to re-bias it if you use other type of el 84?
M Mason Member Joined Jul 9, 2008 Messages 9 Reaction score 0 Apr 15, 2010 #3 No, it's fixed biased (sort of), biasing the driver tube cathodes with R112/15k, 2Volts plus the output tubes with R111/33k,-16Volts.
No, it's fixed biased (sort of), biasing the driver tube cathodes with R112/15k, 2Volts plus the output tubes with R111/33k,-16Volts.
