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Re: I challenge you to publish your measurents of that rolloff!

I built that one, a 12AX7, a 12AZ7, a 12AY7, a 12AU7, a 12AV7, a 5965 and found all them to turn square waves into triangles with a .25 uF coupler to a 100k grid load( with no grid ) by 10k cps. this is with 25, 30 and 40k splitter section loads. It was a bit better with 25k, but not much. I left that design on the shed floor and moved on to 5687 and 12A4 diff amps...

i did not listen to them, but found the stock 6AN8 to sound OK and it turned square waves into triangles by 7k...Hell, some folks like 45's in SE, no accounting for taste.
live long and prosper,
Douglas
!
Beware the man who behaves deceitfully towards others, for there is nothing else to save you from his deceiving you


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