On Wed, 26 Sep 2007 21:16:28 -0700 Jim Cathey <[EMAIL PROTECTED]>
wrote:

> The big heat-sinked paralleled transistors _are_ N-channel
> depletion-mode FET's.  I used the Fluke to measure the channel
> resistance of the pair between source and drain, and got about 0.8
> ohms.  With a negative 1.25V applied to the gate using the Heathkit
> VTVM's ohmmeter function the channel resistance of the pair shot up to
> around 80 ohms.

Amazing. I've never even heard of those as power devices, only enhancement
mode FETs. Now the small, raisin JFETs are a different story.


Craig

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