[Test-Equipment] What is a ISLATROL Model LRI-115

[Eric Lemmon]

Ed,

I picked up one of those units about 30 years ago, from a glib-talking
electronics salesman.  He claimed that it used a crystal oscillator circuit
to lock with the AC power line and eliminate spikes and surges.  When I gave
it to another engineer to test, it seemed (from limited testing) to contain
nothing more exotic than a toroid coil, some capacitors in a "pi" circuit,
and possibly an MOV.  We didn't open the case because it was sealed, and the
weight suggested that it was potted.  Looking back, I should have had it
x-rayed.

Despite the salesman's pitch, the device seemed to have no effect on the AC
passing through it- no more than two wires running between the input and
output terminals.  It was electrically symmetrical, so the input and output
markings were nonsense.  If I still have that device, I'm going to cut it
apart to see just how gullible I was back then!

73, Eric Lemmon WB6FLY


-----Original Message-----
From: test-equipment-bounces at mailman.qth.net
[mailto:test-equipment-bounces at mailman.qth.net] On Behalf Of Edward J White
Sent: Saturday, March 15, 2008 12:43 PM
To: Boatanchors List; Microwave Lists; Test Equipment
Subject: [Test-Equipment] What is a ISLATROL Model LRI-115

Hi Gang:
What is a ISLATROL model LRI-115 It looks like a plug in line filter. 
Anybody have any information on it. It says 120VAC 15 A.
Ed
WA3BZT
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