Re: DMM woes

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "S&JY" <youngsters-at-konnections-dot-net> 

Jim,

I think your assumption is right on.  I feel your pain, as I accidently
smoked my Wavetek DVM with too high a voltage.

Always a good idea to  remove test leads from nearby DVMs, scopes, pulse
generators, etc.  I use a DVM to measure frequency (BPS of my RSG).  I have
to completely enclose it in a 1/4 inch mesh screen (hardware cloth) with
only an optical fiber going in.  Otherwise the DVM becomes very erratic when
my TC is running.
--Steve Y.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Sunday, August 08, 2004 6:51 PM
Subject: DMM woes


 > Original poster: Dsurfr-at-aol-dot-com
 >
 > Hi All.
 > The list seems kind of strange lately but I'll try posting this and see
 > what happens - could be an AOL thing. We moved recently and I'm just
 > beginning to get my coils set up again. I stupidly left my DMM (turned off
 > but w/ test leads plugged in & wound around the case) sitting on the bench
 > next to one of my twin secondary coils. This was unconnected and about 6'
 > away from the other twin I had set up to run solo to test out a few
things.
 > When I tried to use the meter today it seems fried - LCD display is weird
 > and it won't take any readings. I assume it was damaged by the RF from the
 > running coil and perhaps the very close proximity to the bottom of the
 > matching extra secondary & toroid. I'll have to add this to my list of
 > things never to do again and buy a replacement but would anyone care to
 > take a stab at what actually happened to the unit?
 > Thanks in advance for the guesses,
 > Jim
 >
 >
 >