Ian says;
>Come on, Peter - they're still in the component catalogues, but good
>ones cost a fortune at full price.
Doesn't mean they're still made - look at integrated circuits in components
catalogues!
>It hardly seems to be a standard anywhere, if it ever was. High-cost
>meters (surplus of course) seem to vary considerably, but have a lower
>voltage drop than the far eastern imports which typically run 300-400mV.
100mV was the BS at one time, and I believe, was suggested for IEC.
>>(or a pair of them in reverse parallel).
>Hmmm... I thought about this long and hard. Can you see any way that a
>surge from HV+ to the HV- rail could go in the opposite direction?
Depends on where the meter is in the circuit, and what the possibilities are. I
work on the basis that even I have been known to do silly things, such as
leaving shorting bars on supplies!
73
Peter G3RZP
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