From: Kevin McMurtrie
Subject: Re: 12 vdc to 6vdc @ 30amps
References: <email@example.com> <firstname.lastname@example.org> <email@example.com> <firstname.lastname@example.org>
User-Agent: MT-NewsWatcher/3.2 (PPC Mac OS X)
Date: Sun, 15 Sep 2002 08:01:39 GMT
NNTP-Posting-Date: Sun, 15 Sep 2002 01:01:39 PDT
In article <email@example.com>,
Tony Williams wrote:
>In article ,
> Winfield Hill wrote:
>> Oh yeah? Look again, Mr. Tony Williams. I guess you didn't read my
>> reply to no-spam baggypants last week. It dissipates 12600 watts.
>[snip huge ascii diagram. I 'm getting]
>[a certain feeling about AoE III.......]
>> > Circuit Notes: Twenty-eight places 2n5686 or equivalent NPN
>> > TO-3, mounted on a pair of isolated leaf-blower heat sinks,
>> > with thin heat-sink grease, and no insulating pads; each heat
>> > sink dissipates about 4kW at 250A> and 5kW under 300A short
>> > circuit condition. Each resistor bank dissipates up to 0.7kW.
> You forgot to put a "Tony?" on the end of that post Win.
> How did the OP get on with it?
>> Well, gotta run, my wife's replanting a big orange tree.
> And I'm struggling with a pal's well water pump. It has
> pumped ok for 12 years, but we had to take it out in
> order to get a sealing washer replaced. But do you
> think we can make it pump again? We've been three days
> on it, filling and priming the damned thing, time after
> time..... it just will not pump, all it does is just sit
> there, churning water.
Well pumps don't need to be primed. The impeller is probably worn out
or the intake sleeve broke. (I assume anyone here would have checked
the motor capacitor. The pump won't do much if it spins the wrong way.)