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Simple Circuit to test TT Slotted optical switches

Minder

Apr 24, 2015
3,274
Joined
Apr 24, 2015
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3,274
Simply supply a resistor in series with the input diode rated under the spec sheet maximum. and dependant on the test voltage used.
On the output, use a 5k to 10k resistor to common (GND) from the output emitter, connect collector to a +ve
From the emitter connect to the gate of a 2N7000 , 2N700 source to common, 2N700 drain to a suitable indicator LED with series resistor etc.
 

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