[sdiy] isolating variac unit

[Roy J. Tellason]

On Tuesday 06 November 2007 03:58, KA4HJH wrote:
> I have a pair of 8ohm 100W resistors. Great for discharging/overheating
> batteries.

I used to have this rack panel...

Perforated metal,  and on it were mounted four _big_ resistors,  the ceramic 
cored type,  almost as wide as the panel.  Apparently originally 10 ohms 
each,  they were the type with the sliding tap and each was adjusted to 8 
ohms,  and connected up to a set of binding posts.  I have some zip-cord 
wires with dual banana plugs for using it,  and you could parallel two 
channels worth of it and pump 300 watts into each channel for hours on end 
and it wouldn't mind it a bit,  while warming your lunch on the top of the 
rack at the same time.  :-)

Sold that thing a few years back,  figuring that I wouldn't be working on 
power amps any more (I haven't),  for about 250% of what I paid for it.  :-)

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James 
M Dakin