[Kenwood] TS940 Pwr Supply Fan info

Sat, 20 Dec 2003 14:14:18 -0500

Is there anythigng wrong using a computer power supply fan, if the size is
the same?
They are 12VDC fans

WA1WLA
Constantine

----- Original Message ----- 
From: "S. Markowski Jr." <[email protected]>
To: <[email protected]>
Cc: "Mike Gusky" <[email protected]>; <[email protected]>
Sent: Saturday, December 20, 2003 8:38 AM
Subject: Re: [Kenwood] TS940 Pwr Supply Fan info

> Buy a new fan.... I'm out the door to work..  The oil will work for a
> while, a real p.i.t.a.         There's a place that sell this and other
> stuff for kenwood on one of the coast's..R.F. something or other. abt
> 30.00 a couple yrs ago.
> 73,
> Zig KM9M
>
> [email protected] wrote:
>
> >Mike,
> >
> >Can you disconnect the fan and connect to a bench variable power supply.
> >Years ago when I had a 940 my fan was slow as well. It turned out that
> >it needed a few drops of oil on the bearings (not easy to get to). Maybe
> >it is the same situation??
> >Good luck.
> >Happy hollydays.
> >
> >Mort, KB6BSN
> >
> >
> >
> >
> >>Just bought a nice clean 940 (10 mil s/n) and noticed it runs a little
hot
> >>on the power supply side.  Inspection revealed that the fan was barely
> >>turning.  The fan checks good with a 12 volt bench supply.  I have
approx
> >>18.8 volts on one side of the thermistor.  When I jumper the thermistor,
I
> >>can see approx 2 volts on the high side of the fan and it's turning, but
> >>not
> >>enough to move air.  I also get the same results by putting my solder
iron
> >>close to the thermistor while it's in the circuit.  Sure would
appreciate
> >>some help if anyone has been down this road.
> >>
> >>73
> >>Mike
> >>K5UX
> >>
> >>
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