Appears to me that the resistor is rated 50 watts going by the numbers. Even
at its rating of 50 watts, the resistor would be extremely warm.
Brad Rusnak
b_rusnak@telusplanet.net
1949 Chev 1/2 Ton Deluxe Cab
----- Original Message -----
From: Bill Bailey <billb@gamewood.net>
To: <Samsred72@aol.com>
Cc: <oletrucks@autox.team.net>
Sent: Tuesday, December 21, 1999 10:58 AM
Subject: Re: [oletrucks] Voltage reducer
> It's probably working right, hot is a very subjective term but they do get
exteremely warm. Amp draw on my fresh air (a 12 V motor) was about 4 amps
as I recall. That's 16 watts when drawn through a 1 ohm resistor. That'll
get your attention. Your motor is a 6 V which means it would draw more than
mine. If we use mine as a reference and assume that they all present about
the same load (somewhat of a leap of faith) then yours would draw 8 amps
(mine =12V x 4 amps for 48 watts so yours would be 6V x 8 amps for 48 watts.
That would mean the 1 ohm would dissipate about 64 watts ( 8amps x 8amps x
> 1ohm). If your reducer has a greater rating than that you are ok. But even
so it would be like putting your hand to a 60 watt light bulb..HOT!!
> For more on this type of thing you can see my webpage which has an
electricity section that explains this in more detail.
> http://members.tripod.com/~oltruck
>
> Bill
>
> Samsred72@aol.com wrote:
>
> > I have a question pertaining to reducing the voltage to the heater
motor. I have a reducer in the line now that looks like a long cylindrical
and hollow ceramic tube. It states on it... Clarostat VP-50-K 1ohm. If this
is the proper reducer it seems to be working improperly. As the fan is
drawing current this reducer gets hot enough to burn you quickly. I don't
think it is heavy enough to carry the amps required by the motor. If so, can
anyone tell me the amp draw of the "fresh air heater" motor so that I can
get the proper reducer without taking off the cover... it's cold out side ya
know?
> >
> > Sam
> > '49 3100 Chevy
> > oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
>
> --
> Bill Bailey
> 57 Chevrolet 3100
> http://members.tripod.com/~oltruck/
>
>
> oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
oletrucks is devoted to Chevy and GM trucks built between 1941 and 1959
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