On 29 Jan 02, at 14:28, rich wrote:
< snip >
> To do the job at hand, a zener must exhibit a high dynamic resistance
> with only a small change in V. Otherwise it would not be able to
> maintain a constant V as the screen current varies.
No. That's a SMALL dynamic resistance. You want delta V to be small
with a given delta I.
Dynamic Resistance = (delta V)/(delta I)
Good voltage regulation is "constant V as the ... current varies"...
Rich has that right, but that's LOW dynamic resistance.
73,
George Daughters, K6GT
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