03-12-2019, 06:02 PM
On the high voltage ranges a DMM may have lower resistance than an analogue meter. Decent DMMs are 10M on all voltage ranges (cheapo ones are sometimes 1M). A Avo 8, 20k per volt, is 20M on the 1000VDC range.
Many of us will use a DMM and make an allowance against the quoted voltage on a circuit diagram. Based on looking at the circuit and experience. So an HT rail will read near enough the same on any meter. But a valve anode with a high value load resistor will give very different answers.
Many of us will use a DMM and make an allowance against the quoted voltage on a circuit diagram. Based on looking at the circuit and experience. So an HT rail will read near enough the same on any meter. But a valve anode with a high value load resistor will give very different answers.
www.borinsky.co.uk Jeffrey Borinsky www.becg.tv
