Logic Probe with Display

100

01:44:14

This is a logic probe with display for proving logical circuits

published 8 years ago

hurz

8 years ago

Draws quite a lot current from a measured device 50mA most logic ICs can not even source 5mA. And the diodes are not needed, incase off Low the logic level behind is floating and unclear. While for high it drops extra threshold. BTW, digital signals might be very unstatic, many of them.

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