26 Oct
2015
26 Oct
'15
8:02 a.m.
At 10:45 AM 10/26/2015, Jerry Weiss wrote:
Water in the dummy load? Water cooled - sure.
Water immersed? Even though I see it posted on the web, i have may doubts it would be a
stable method.
I concur. Tap water may have contaminants (such as chlorine) that will cause electrical
leakage.
Oil is the usual medium here.
Current non-PCB transformer oil is the preferred oil, but for relatively low power levels
(say, 1 kilowatt dissipation or less) USP-grade mineral oil (available at your pharmacy)
is a very viable substitute.
Dale H. Cook, Roanoke/Lynchburg, VA
Osborne 1 / Kaypro 4-84 / Kaypro 1 / Amstrad PPC-640
http://plymouthcolony.net/starcity/radios/index.html