Re: [CAD_CAM_EDM_DRO] Need 1N4437 bridge rectifier...

Doug,
If the voltage really is to high with the bridge rectifier, replace it with
a diode. That
would give you .707 of the 110 volts for 78 volts DC instead of the 1.4
times 110
for a DC voltage of 154 volts.
Darrell

----- Original Message -----
From: <dougrasmussen@...>
To: <CAD_CAM_EDM_DRO@egroups.com>
Sent: Tuesday, September 12, 2000 4:09 PM
Subject: [CAD_CAM_EDM_DRO] Need 1N4437 bridge rectifier...


>
> Group,
>
> Anyone know a source for this item? Mounts with a 1/4" bolt on the
> back. Metal case. At 110V ac input, ouput is 90V dc. Probably
> about 10 amp rating.
>
> Apparently this was widely used 20-30 years ago. My local sources
> don't even show the number in their listings.
>
> It's for the high/low clutch mechanism in a Hardinge DSMA.
>
> Lacking the exact part number I replaced it with one of those plastic
> cased rectifiers with 30A rating. Output is around 110V dc. Seems
> like the clutch actuating coils are running a little hot, although I
> can't say for sure since I never checked them until now.
>
> Anyway, it'd be nice to get the exact replacement part.
>
> Thanks,
>
> Doug
>
>
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