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Old 4th Sep 2010, 10:51 pm   #4
glowinganode
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Join Date: Apr 2009
Location: Aylesbury, Buckinghamshire, UK.
Posts: 1,522
Default Re: Homebrew valve curve tracer.

Wow what a super piece of kit.
I assume you set and enter the negative grid volts then sweep the anode voltage up to the maximum, the anode voltage and current communicated to the computer through the A/D. The curves are then compiled from the results, can it display other curves from the same results such as Ia vs. -Vg1 for a fixed anode voltage? Genius, can you give more detail on the A/D and programming required please. Do you check tetrodes / pentodes strapped as triodes, or with a fixed screen supply?
Rob.
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Last edited by glowinganode; 4th Sep 2010 at 10:57 pm.
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