Posted by Tnuctipun [ 64.12.116.132 ] on March 04, 2005 at 14:41:00:
In Reply to: Input stage posted by Cheetah on March 04, 2005 at 14:33:46:
Hey-Hey!!!,
Yes I have. Built with 6AK5, 6AU6, 12BY7, 12GN7, 6AH6, 8136. Missed a few, but the slightly more complex looking cascode works better. Tread Ec2 like the pentode's g2, and you're off.
the g2 being in parallel with the plate does funny thigs( I think ) to the constant current out of the cathode circuit. The cascode is a series afair, and the pentode is a parallel. You still need a good g2 supply...
regards,
Douglas
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