[Boatanchors] Question for Triplett 3444-A

J. Forster jfor at quikus.com
Sat Jan 12 23:19:25 EST 2013

The resuistor's purpose is to limit the AC line current, in case something

The manual with prints are on BAMA:


The Resistor is R33.

At a guess, either the thing was abused, or, more likely, one of the
filter caps has gone a dead short.

The pilot lamp across R33 is likely toast, unless it's a Neon. I've closed
the .pdf.

IMO, it should be an easy fix. Check the PS filter caps and diodes and
replace R33 and the pilot.




> Hello All,
> I have a Triplett 3444-A from an estate sale that needs some help.  When I
> peeked under the hood, my eyes were immediately drawn to a blown power
> resistor that was attached to the middle terminal of the line voltage
> adjustment pot.  Other than that, everything else looks quite clean and
> intact with no evidence of overheating, shorting, arcing, etc.
> I do have the manual, but there is no mention of an additional resistor
> added to the wiper terminal.  As best I can measure the resistor was 20
> ohms (it was a wire-wound type and the wire was broken off at one of the
> end connections).
> Before I yield to temptation and start poking around further, I would like
> to ask if anyone knows of a trustworthy shop having experience in
> repairing and calibrating this type of tester.  Mr. William Waters worked
> on my Hickok 605A and I have already sent an email to him.  If there are
> any other recommendations, please feel free to drop me a line.
> As I have been using the Hickok and my Heath TT-1, I really do not need
> the Triplett.  I imagine it will be put up for sale once it is brought up
> to snuff.  Based on the silly prices on that auction site, the proceeds
> may buy a textbook when my first kiddo goes to college... in 2021.
> Thank you all in advance for your help.
> Best Regards,
> William
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