The crowbar circuit operation should never damage the meter movements or
related sense resistors.

cheers,
s.

: geek wrote:

: I modded one of those significantly. Too long ago to remember the exact
: thing I did, but DO put that crowbar SCR anode on the collector of the
: pass transistors. If it trips as is, you kiss the current meter and
: expensive current sense resistor goodbye.

: Cheers,
: __
: Gregg