[Amps] high voltage fuses

[Paul Christensen]

> This also applies to the plate meter or any low-resistance current meter,
> which nearly all of them are.
>
> 73, Bill W6WRT

Good info Bill -- and it's not a difficult exercise, beyond simple algebra 
to solve for the right series resistance value once the meter resistance is 
known or computed.

To validate a DC meter's internal resistance, I still use the simple method 
described in a ca. 1950s Allied's Electronics Data Handbook.  It always 
brings me back to my high school days when as students, we were tasked to 
find a DC meter's resistance.  First thought for the unknowing:  just grab a 
<gasp!> Simpson 260 set on the Rx1 scale!  The instructor stopped us in 
time.  Anyway, that same math will also prove why sensitive moving coils are 
subject to failure without the limiting resistor.

Paul, W9AC