[R-390] Need AC power cords with round chassis

[Al Parker]

hi Folks,
    IIRC, there are 2 similar but non-compatible "3 round pin" connectors, I
think I've got one type on some older test eqt, like Boonton, plus the other
on later HP stuff.  Not sure if HP may have used both at different times.
As usual, I can't find the proper one when I need it, don't have enuf for
every pc of eqpt.
73,
Al, W8UT
New Bern, NC
www.boatanchors.org
www.hammarlund.info

"there is nothing -absolutely nothing- half as much worth doing as
 simply messing about in boats."
   Ratty, to Mole

----- Original Message -----
From: "Bill Hawkins" <bill at iaxs.net>

This is the rectangular (flat) connector with 3 round pins
for line power that has rounded ends, predating the
connector that is standard for computers.

The safety ground is always the middle pin.

Hot and neutral may be swapped.

This usually didn't make any difference to the equipment.
It depends on how power was routed to the power switch and
the sensitivity of the instrument to power line hum.
At least, that's been my experience.

Bill Hawkins


-----Original Message-----
From: k2cby
I've bought these in the recent past from Mouser.

Hewlett Packard used these a lot.

Mouser Part #:  686-17952
Manufacturer Part #:  17952 8 B1
Manufacturer:  Volex
Description:  AC Power Cords 8' 18AWG 7A NON-STD

They are presently not stocked with a 2-week backorder time.

NOTE! Be careful to check the pinout. Two versions were made
with the ground on different pins. It may be necessary to
rewire the receptacle.