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Posted by PakProtector [ 205.188.117.72 ] on February 12, 2007 at 10:33:33:

In Reply to: Re: more Pentode sacrelige posted by ChrisL on February 11, 2007 at 20:41:08:

Hey-Hey!!!,
It is indeed 750 Ohms. Since I don't need much gain, or output swing, I used a low plate load. Remember that for transconductance devices like pentodes the stage gain is ~gm*Plate-load.

The g2 voltage is 75V, and gm is published for that OP. The bias is ~5.5V established with a 100R cathode resistor. Actual plate V is about 150 as dropped from a B+ of ~200. I may even try a lower value plate load...:)
cheers,
Douglas


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