[AMPS] High watt Zeners !

[Peter Chadwick]

>You take a high power npn transistor
>and connect a low power zener from collector to base, with
>the banded end at the collector

But don't forget that the temperature coefficient is now totally different,
while the 'zener' voltage has increased by the Vbe of the transistor. So a 6
volt zener(which would have approximately a zero temp. co) would become 6.7
volt zener with a temp. co. of -2mV/deg C.(assuming a silicon transistor)

73

Peter G3RZP



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