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Ceengland
Joined: 11 Oct 2020
Posts: 391
Location: MS
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 Posted: Sat Nov 21, 2020 6:07 pm Post subject: Dimmers without switches |
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On 11/21/2020 6:59 PM, Dan wrote:
| Quote: | For reasons of size/spacing I ordered 4 potentiometers (5k ohms) with
longer shafts to replace the ones with my VAL CLA 500 dimmer unit.Â
But the units I ordered do not have a SPST switch that turns them off
when rotated all the way counter clockwise. (The other ones have the
switch, but I need the longer shaft). If I use them, would I need a
separate switch for the dimmer unit, or could I leave the four
potentiometers "on" but rotated fully clockwise while keeping the
light off. Would that mean they would be drawing a continuous load
all the time?
How about
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https://www.google.com/search?q=volume+control+shaft+extension&rlz=1C1CHBF_enUS843US843&oq=volume+control+shaft+extension&aqs=chrome..69i57.11893j0j7&sourceid=chrome&ie=UTF-8
instead?
Charlie
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Charlie |
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nuckolls.bob(at)aeroelect
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| Posted: Mon Nov 23, 2020 6:29 am Post subject: Dimmers without switches |
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At 08:01 PM 11/21/2020, you wrote:
| Quote: | --> AeroElectric-List message posted by: Charlie England <ceengland7(at)gmail.com>
On 11/21/2020 6:59 PM, Dan wrote:
| Quote: | | For reasons of size/spacing I ordered 4 potentiometers (5k ohms) with longer shafts to replace the ones with my VAL CLA 500 dimmer unit. But the units I ordered do not have a SPST switch that turns them off when rotated all the way counter clockwise. (The other ones have the switch, but I need the longer shaft). If I use them, would I need a separate switch for the dimmer unit, or could I leave the four potentiometers "on" but rotated fully clockwise while keeping the light off. Would that mean they would be drawing a continuous load all the time? |
How about
https://www.google.com/search?q=volume+control+shaft+extension&rlz=1C1CHBF_enUS843US843&oq=volume+control+shaft+extension&aqs=chrome.69i57.11893j0j7&sourceid=chrome&ie=UTF-8
instead?
Charlie |
There is a case to be made for not turning
panels lights completely OFF . . . just dimming
them to an intensity that is at the minimum
that would be used in flight.
See chapter on lighting in the 'Connection.
You'll read an explanation of how keeping
incandescent bulbs 'warm' increases their
durability under vibration. Of course this
doesn't apply for LED.
Our line of dimmer assemblies from years
past set the max CCW voltage at about 4
volts. No significant light output. But
the lights would 'come alive' at the first
rotation of the pot.
Be aware too that many pots with switches
are 'volume controls' and do not have linear
rotation vs. voltage curves.
Bob . . .
Un impeachable logic: George Carlin asked, "If black boxes
survive crashes, why don't they make the whole airplane
out of that stuff?"
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