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Old 23rd June 2005, 02:24 AM   #1
dhenryp is offline dhenryp  United States
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Default power cord for HP 331a distortion analyzer

I bought an HP 331A Distortion Analyzer on E-Bay (great deal: $29 !). It did not come with a power cord but I thought; "no problem, I have plenty of IEC power cords hanging around". I received it today to find it does not have a standard IEC replaceable cord connector on the chasis (three prongs with a connector with angled shoulders ) like you find on every PC, for example. It has three prongs and the connector is about as wide as normal but it is not as tall and it has no angled corners. This is an old piece of equipment built in the 70s and 80s and I assume this is pre-standardization. Is there a place to buy this style cord (or connector) or do I have to take it apart and put in an IEC connector? It's not a big problem but I would prefer to check the equipment before I take it apart.

Thanks,

Denis
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Old 23rd June 2005, 03:21 AM   #2
jleaman is offline jleaman  Belgium
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What about cutting a power cord and attaching 3 aligator clips to it. This way you know if it works before working on it..
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Old 23rd June 2005, 05:22 AM   #3
Stocker is offline Stocker  United States
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Sure, and if they are not shielded by rubber boots, it's also a good way to pop a fuse or much, much worse. If you can cut a standard plug's insulation to fit and the pins line up, I would try that first, then possibly use a different power socket if it bothers you.
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Old 23rd June 2005, 05:26 AM   #4
jleaman is offline jleaman  Belgium
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maybe i should write it to not be IDIOT PROOF why would you not use boot's.. they come on all aligator clips unless you spacifically buy the ones with out them.. al mine have boots on the yellow green red black.. any ways its a cheaper way than spending all the money and time looking for a cable to not have something work..

J'
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Old 23rd June 2005, 06:25 AM   #5
BrianL is offline BrianL  United States
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The cord you are looking for can be obtained, but it'll
take some looking. I believe that Belden might
still make it.

But it may be a lot less effort to just put an IEC jack in place
of the current one. It'll take a bit of nibbling of the chassis
to get the hole size fixed, but that's not too bad. Just be
sure to not let any metal shavings/chips inside!

I believe that area of the chassis is not crowded. I do not
recall whether the old power jack was a combo unit with
power line filter, but I don't think so. If it did have a line
filter, you should easily be able to find a Corcom unit
with IEC jack and line filter. As the unit is totally analog,
filter choice should not be critical.

Don't forget that any mods you make will void the warranty. ;-)
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Old 23rd June 2005, 07:08 AM   #6
Magura is offline Magura  Denmark
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Those HP cords are blody expensive unless you stumble on one on ebay.


Magura
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Old 23rd June 2005, 11:16 AM   #7
Stocker is offline Stocker  United States
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Why would *who* not use boots? I wouldn't even consider alligator clips myself, I'd just jump straight to a new socket.

HOWEVER the reason most clips you see in the store today have boots...

Is because *somebody* thought they would be ok without them.

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Old 23rd June 2005, 04:06 PM   #8
dhenryp is offline dhenryp  United States
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Thanks to all. I'll see if I can safely jury rig something. I dont' think aligator clips will work because it's a pretty small recessed socket. I'll look through my junk box, maybe i have something I can slip over the blades. I already have IEC connectors and cords so if I have to do that it should only take an hour or two.
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Old 23rd June 2005, 05:27 PM   #9
jleaman is offline jleaman  Belgium
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What about soldering a wire to each tip just a quick small solder. then if it works and you do find a cable you can remove the solder and wire.
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