[Milsurplus] GRC-9 rec dial light

[J. Forster]

Unsurprising. AFAIK, they don't exist. The physics is just wrong.

A LED cannot emit light unless the applied voltage is bigger than the
band-gap. The smallest current band-gap is for IR/red LEDS and is about
1.6 V.

See:

http://en.wikipedia.org/wiki/Light-emitting_diode

-John

=================



> It's clear to me now that i should have stated, part of the challenge is
> that you ( I ) cannot seem
> to find any LEDs that will work from 1.4 - 1.5 volts.
> Hue
>
>
>> Hue,
>>
>> There are LED bulbs available which are direct replacements for the
>> range of
>> standard indicator/pilot light bulbs, and the common base styles.
>> I successfully relamped (I forgot the bulb number, but they're bayonet,
>> 12
>> V) one of my Canadian Marconi CSR-5 Royal Canadian Navy receivers with
>> such
>> LED bulbs.  
>>Meir WF2U  
>> Landrum, SC>
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