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Will this work as a differential stage?

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Probably a silly question but would this work to get a low impedance differential drive?
Thanks,
Marty

ccsontop.jpg
 
Ex-Moderator
Joined 2003
Not terribly well, I think. The cathode followers are fine but the CCS isn't. Think about what would happen if the signal currents in the two valves were not equal - a very large signal voltage would develop across the CCS. What you'd really like is a current mirror in the cathodes.
 
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