AW: [sdiy] Re continuity tester:

[Czech Martin]

I prefer an ICO tester, high squeeking means 0 Ohm,
low sqeeking MOhm. Modulated noise means unstable
connection. So I can keep my eyes on the measurement tips and don't have to
turn my head aleays to the meter, this would be pretty uncomfortable.
A 555 should do the trick.

m.c.

> -----Ursprüngliche Nachricht-----
> Von: pfperry at melbpc.org.au [mailto:pfperry at melbpc.org.au]
> Gesendet: Freitag, 8. Juni 2001 19:20
> An: synth-diy at node12b53.a2000.nl
> Betreff: [sdiy] Re continuity tester: 
> 
> 
>  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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