Thread: Mach3 VFD PWM signal...
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27-03-2016 #19
No I meant a proctoscope ! Happy Easter Clive..
Serious suggestion now - If you have an analogue meter these can have impedances as low as 5000 ohms per volt. All electrical measuring devices draw current from the circuit and this affects the circuit (experts can get precious here, but I am simplifying !). Having said that, I would not expect the BoB to be such a high impedance source as to have a drastic voltage drop when meter is put on it.
As Jazz says, it could be a dodgy Bob. I have never met a Dodgy Bob, but I do know a bloke called Dodgy Dave.Last edited by cropwell; 27-03-2016 at 02:03 PM.
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