Posted by Damir [ 213.202.112.14 ] on June 19, 2006 at 01:02:17:
In Reply to: Re: tried the 6688 posted by Damir on June 18, 2006 at 18:56:45:
Forgot to add - check for oscillations, I have a problem with all those high-gm tubes. Use g1 stopper, g2 stopper (g2 to anode), and use both cathode connections - I use two resistors, but one Rk+wire bypass to other cathode pin worked, too. Where you connected g3?
Somehow I can`t believe that you and I get totally opposite results?! 
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