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grounded grid


kevin gilmore
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2 hours ago, sorenb said:

would cascoding the 6S4A with  KSC2690 be possible as well?

In a KGST?

I don't believe it would work with a CCS on the tail as well as on each plate. That's a different circuit topology with a grounded cathode,  rather than the BH, Carbon, and Kevin's latest grounded grid variants. 

 

 

 

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in the original kgbh, the 2sj79 can be replaced with a ksa1220A and the 2sk216 can be replaced with a ksc2690a. Not the same pinout.

someone would have to test, but synthesis shows it would definitely work. in fact the ksa1220a and ksc2690a are faster and lower capacitance parts than the originals.

Edited by kevin gilmore
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