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Nice. And I always thought FETs had a negative temp coefficient. And maybe that's just the resistance of the channel, not the behavior of the gate bias.

Hmm.

Seems to me putting two or more series diodes in the trimpot's ground return would increase the compensation. Each diode will add it's own increment. Seems like that would help. Mounting them across the face of the transistor body would improve response speed.

Never have tried it.

73

[QUOTE="nomadradio, post: 724619, member: 22"] Nice. And I always thought FETs had a negative temp coefficient. And maybe that's just the resistance of the channel, not the behavior of the gate bias. Hmm. Seems to me putting two or more series diodes in the trimpot's ground return would increase the compensation. Each diode will add it's own increment. Seems like that would help. Mounting them across the face of the transistor body would improve response speed. Never have tried it. 73 [/QUOTE]

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