Quote:
Originally Posted by Dekatron
The measurements in my VCM163 and Roetest V9 shows that the results are in line with Davids and I added them to the Excel-sheet. I made measurements with both Anode voltage set at 200V like in the AVO VDMs and also with 250V like David used. I only made measurements at 250V with the Roetest. With my VCM163 and a grid voltage of -20V I got a Gm of 4.4mA/V @ 46mA Ia with 200V and 4.6mA/V @ 49mA Ia at 250V. The Roetest used a grid voltage of -22.5V and there I got a Gm of 3.9 @ 39mA. I'll add my measurements to Davids sheet when I have some more time and post a scan here.
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I forgot to say that my measurements were made with Va = 250v because I just followed David's lead.
Nck