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Use J6 pulse to drive analog meter
Posted: Thu Jun 13, 2013 3:09 pm
by kg6am
Can I use the J6 pulse to drive 50 microamp analog meter ? I have tried using a TLC272 chip based circuit with no success.
Re: Use J6 pulse to drive analog meter
Posted: Sun Jun 16, 2013 11:00 am
by mightyohm
I'm not familiar with the TLC272 but will check out the datasheet. What circuit are you using? Can you post a schematic?
Re: Use J6 pulse to drive analog meter
Posted: Tue Jun 18, 2013 9:47 am
by kg6am
Hi Jeff : the circuit is shown in techlib.com/science/geiger.html Dewey , KG6AM
Re: Use J6 pulse to drive analog meter
Posted: Thu Jun 20, 2013 8:33 pm
by mightyohm
I suspect that if you are seeing no indication on the meter, the pulses generated by my kit are too short to use with that circuit. Try lowering the resistance in series with the pulse output and see if that makes any difference.