nuckolls.bob(at)aeroelect
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 Posted: Sun Mar 22, 2020 12:18 pm Post subject: AeroElectric-List Digest: 2 Msgs - 03/20/20 |
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At 10:24 AM 3/22/2020, you wrote:
Yes. The B&C controllers need TWO resistors to
orchestrate the incandescent to led conversion.
This is because the LS-1 has special circuitry
in the low volts warning circuit that causes
the warning light to glow if power to to the
control electronics is lost.
A 'sneak' current resistor inside the
controller is too small to cause an incandescent
lamp to glow but LEDs are happy to let
you know it's there.
This feature is an artifact of some fuzzy
thinking waaaayyy back when. We were doing
this on accessories I designed in the
80's
Actually, that feature could/should be removed
from the line of B&C products that included
it.
In the mean time, the schematic John cited
above is the work-around. I have updated
that drawing to show TWO configurations
for the conversion 1) DIY fabrication of
the LV WARN fixture using a rudimentary
LED bulb 2) incorporating an LED fixture
already fitted with the necessary resistor
for operation at your ship's system voltage.
Bob . . .
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