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Re: What rheostat do I need?

SS
Steve Southworth
Thu, Jul 7, 2022 5:44 PM

Yes that device will  easily operate your fan.  The only consideration is the mounting.  Some of these are not suitable for a thicker panel.

Larry wrote on Thu, 07 July 2022 10:22

midlf wrote on Thu, 07 July 2022 10:00

You do not want a rheostat.  That is very old inefficient technology.  A Pulse Width Modulator is the current best practice.  (Google "pulse
width modulator" on wiki for technical and operational information.)

EBay "12V pulse width modulator" to find appropriate devices.  For your use most any one will work.  There are two basic types you will be
interested in.  One has the potentiometer mounted on the circuit board, the other has the potentiometer on wire leads so the control can be
mounted remotely to the device.  Which one you want will be determined on the mounting method.

On eBay you can also search for "12v pwm controller".  That should provide the same results.

The "rheostat" listed will not handle the current needed.  I haven't done the math but I believe none of those listed would be the correct ohm
value.

Please ask more questions if needed.  I have 5+ of these installed on mine for various purposes.

Thanks Steve, How about this?

https://www.amazon.com/BOJACK-Controller-Dimmer-Control-Switch/dp/B09P6CMRC9/ref=sr_1_45?gclid=CjwKCAjwiJqWBhBdEiwAtESPaIB_9v-ssgpi_3tx76fHnZVGWA-a8-X
SsVYQUD1hig57HMAKLVPlzRoCu6QQAvD_BwE&hvadid=409997657456&hvdev=c&hvlocphy=9019332&hvnetw=g&hvqmt=e&hvrand=6712530865257829960& amp;
amp;hvtargid=kwd-320046497276&hydadcr=24630_11410023&keywords=12v+pwm+speed+controller&qid=1657206905&sr=8-45

--
Steve Southworth
1974 Glacier TZE064V100150 (for workin on)
1975 Transmode TZE365V100394 (parts & spares)
Palmyra WI

Yes that device will easily operate your fan. The only consideration is the mounting. Some of these are not suitable for a thicker panel. Larry wrote on Thu, 07 July 2022 10:22 > midlf wrote on Thu, 07 July 2022 10:00 > > You do not want a rheostat. That is very old inefficient technology. A Pulse Width Modulator is the current best practice. (Google "pulse > > width modulator" on wiki for technical and operational information.) > > > > EBay "12V pulse width modulator" to find appropriate devices. For your use most any one will work. There are two basic types you will be > > interested in. One has the potentiometer mounted on the circuit board, the other has the potentiometer on wire leads so the control can be > > mounted remotely to the device. Which one you want will be determined on the mounting method. > > > > On eBay you can also search for "12v pwm controller". That should provide the same results. > > > > The "rheostat" listed will not handle the current needed. I haven't done the math but I believe none of those listed would be the correct ohm > > value. > > > > Please ask more questions if needed. I have 5+ of these installed on mine for various purposes. > > Thanks Steve, How about this? > > https://www.amazon.com/BOJACK-Controller-Dimmer-Control-Switch/dp/B09P6CMRC9/ref=sr_1_45?gclid=CjwKCAjwiJqWBhBdEiwAtESPaIB_9v-ssgpi_3tx76fHnZVGWA-a8-X > SsVYQUD1hig57HMAKLVPlzRoCu6QQAvD_BwE&hvadid=409997657456&hvdev=c&hvlocphy=9019332&hvnetw=g&hvqmt=e&hvrand=6712530865257829960& amp; > amp;hvtargid=kwd-320046497276&hydadcr=24630_11410023&keywords=12v+pwm+speed+controller&qid=1657206905&sr=8-45 -- Steve Southworth 1974 Glacier TZE064V100150 (for workin on) 1975 Transmode TZE365V100394 (parts & spares) Palmyra WI