On 22/05/2015 17:27, wrote:
The discussion of the device in series with the Cannon XLR jogged
my memories of the Polyswitch, a protective device whose resistance
jumps up when sufficiently heated (via current), but goes back down
when it has cooled off.

http://www.te.com/usa-en/products/ci...e-devices.html

We ended up not using them, but now I am curious if they show up in
damaged equipment.


I recently had a pair of polyswitches, same size and markings, in the
same kit, with both cold one was 0.5 ohm or so greater ohmage than the
other. Not that that was the problem.