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Old 13th Jul 2018, 12:51 am   #7
Bazz4CQJ
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Join Date: Apr 2009
Location: Oxfordshire, UK.
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Default Re: VCM163 Calibration Question

I've just been looking at the circuit diagram of the oscillator board. The test points (red and brown sockets) used to set the level actually measure the voltage across R19, a 10ohm resistor (+-1%) see attached.

Perhaps I'm missing something, but does that really need such a high impedance test meter or is it just a case that any meter that will accurately measure 15mV at 15kHz will probably be a 'quality' instrument anyway?

B
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Last edited by Bazz4CQJ; 13th Jul 2018 at 1:07 am.
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