20 Aug
2009
20 Aug
'09
12:27 p.m.
Tony Duell wrote:
Some older HP instruments (and I think other manufactorers) used a 3-pin
power connector with round pins, not the flat pins used on the now-common
IEC plug. I've seen this connector used on older HP9100s, HP5245
counters, and on the 9125 I at ve just bought.
Does anyone know if the cables to fit said plug are still available, and
if so, where? I don't care what's on the other end of the cable (bare
wires are fine), but I would want it to stand UK mains
[For all the seller cleaerly showed the right cable in the E-bay listing,
and for all he said the power cable was included, it wasn't. Apparently
he lost it in a warehouse move. OK, there things happn, but I still need
to get one ot power up said plotter).
These were discussed on the list a couple of years ago, IIRC at that time
somebody provided a reference to some place still selling them. I was trying to
find the message in the cctalk archives recently due to a request from someone
else, but have been unable to do so (word search on the archive page doesn't
seem to work).
One of the problems is there are several variations that look very similar:
slightly different pin diameters, pin lengths, spacing, and there are two that
look physically identical but have the hot/neutral swapped. With that said,
there is one (the type that HP used, I believe) that is more prevalent than the others.
I often replace these (and other) old power connectors with IEC connectors if
it can be done without hacking up the equipment, but some may prefer not to
make such a modification. The rectangular hole has to be made larger of course
and the two screw holes have to be 'moved out' about 1/32 - 3/64 inch.