AC power on front panels
henk.gooijen at oce.com
Tue Jan 17 02:29:47 CST 2006
Thanks for that remark, Pete!
I did not want to go into "pedantic" mode, but I was indeed
thinking about the capacitors in the EMI filter, but thought
that chances are very slim that they fail. But they can!
Once in ten years is good, except if it's *your* filter that
The caps in the EMI filter have a very small leakage current,
so if you are 'energy-concious' pulling the plug is truely
the only option.
- Henk, PA8PDP.
> -----Original Message-----
> From: cctalk-bounces at classiccmp.org
> [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Pete Turnbull
> Sent: dinsdag 17 januari 2006 9:06
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: AC power on front panels
> On Jan 16 2006, 13:59, Patrick Finnegan wrote:
> > On Monday 16 January 2006 04:09, Gooijen, Henk wrote:
> > > I always pull the plugs on my PDP-11s, because the small
> > > in the power controller is always connected.
> > You could also just flip off the breaker on the power controller,
> > disconnects everything* in the PCU from the mains.
> > * Except for the EMI filter, inlet power cable, plug from the wall,
> etc. :)
> I've had to repair 861 power controllers twice in the last
> ten years or so -- once was indeed the EMI filter :-)
> Pete Peter Turnbull
> Network Manager
> University of York
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