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Re: Like so????

...like it ,like it , but there will be no bias 'control' with a 6S19 strapped like this (see my new posting regarding triode bias) . For fixed bias , simply connect the secondary lead of the IT , that is currently connected to 0v to the appropriate negative supply , a stack of lithium cells may be ideal here and avoid another LT transformer . You may have problems with the dissipation of the CCS on top of the 6BX7 if the HT is high , also high voltage transistors may have to be used which usually have low Hfe (current gain) . Why not use a CCS for the first stage (or srpp etc) then resistor anode loading of the 6BX7 . 2nd harmonic cancellation should take place between the 813 and 6BX7 , but may be a pain in practice to implement adequately , but then again , thats helf the fun ! Remember that a CCS loaded stage will only be super-linear with an open circuit load . The 813 is a big valve , therefore probably has big capacitance Cin and miller .

...FB


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