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Thanks, let me elaborate...

Dear Tre,

Thanks.

Let me eleborate. The preceeding (voltage) stage has a Zout of slightly less than 25K. I do have a 4800H grid choke, but @ 4hz this gives a Xl of about 120K. I want to maintain a 1:10 ratio between Zout and Zin, so this will not do.

Hence my question for the 250K grid-leak, which I want to breadboard, just to compare the 250K grid leak vs the 4800H grid choke. Compared with a 100K grid leak, I will be better of with the choke I guess.

On the breadboard I also want to experiment with a choke bypass R to lower the Q, and even a 100K in series with the grid choke.

I cannot 'tune' this on paper, so I just want to listen and compare.

Regards,
NC

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