[sdiy] Re continuity tester:

[pfperry at melbpc.org.au]

 I don't agree with Scott on this one. Suppose you have a intermittent short or break in a lead, you can detect it by shaking the cord while the continuity tester is connected & listening for little bips. You can't do that with a meter, plus you have to look at the meter!
Also, in troubleshooting, is is REALLY rare that a 'low ohms' connection will trip you up. If it is something you made yourself, usually you are looking for shorts. If you are repairing, you are usually looking for breaks.
A two transistor multivibrator running on 3v makes a useful continuity tester.

paul perry Melbourne Asutralia

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