Diode Peculiarities

Mark Jones · 2004-12-01T23:43:40+00:00

From experimentation, some interesting results: By Mark Jones 1N4001 1N5189 1N41481) Vforward @ 5v, z=100M 0.29v 0.01v 0.46v1) Vforward @ 5v, z=10M 0.32v 0.02v 0.48v1) Vforward @ 5v, z=1M 0.38v 0.05v 0.55v1) Vforward @ 5v, z=100k 0.45v 0.10v 0.62v1) Vforward @ 5v, z=10k 0.56v 0.18v 0.70v1) Vforward @ 5v, z=1k 0.75v 0.37v 0.90v----------------------------------------------------2) Ireverse @ 5v, z=0.1R 66fA 1.1uA 2.75mA----------------------------------------------------3) Vreverse @ 5v, z=100M 6.6mV 4.99v 2.75v3) Vreverse @ 5v, z=10M 2.1mv *4.10v 2.65v3) Vreverse @ 5v, z=1M -0.3mV *1.00v *2.24v3) Vreverse @ 5v, z=100k -0.7mV *0.12v *1.67v3) Vreverse @ 5v, z=10k -0.8mV 0.01v *1.06v3) Vreverse @ 5v, z=1k -0.9mV 300uV 0.48v* 1N5189 showed extreme tempco in the volt range* 1N4148 showed measurable tempco in the mV range* Vr measured across dropping resistor to ground.-M

Dec 01, 2004 21 Replies

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Tam/WB2TT 21 years ago

I have no idea what the original battery is like. You can not see it without disassembling the front panel, which has about 25 knobs and switches on it. There is no reference to it in the instruction book, other than it exists. The original battery lasted about 15 years.

Tam

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Robert Baer 21 years ago

I would tackle it on General Principles (never met him).

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