[Elecraft] K1 LCD Illumination mod

[Mark J. Dulcey]

Tom Hammond N=D8SS wrote:
> If you placed several of them in series, you could add up to about 8-10=
=20
> LEDs with NO increase in current, and you'd not have to dissipate nearl=
y=20
> as much heat in the dropping resistor.
>=20
> NOT that I'm advocating using a bunch of them, but if they're in series=
,=20
> you CAN reduce the size of the current limiting resistor.

If you used LEDs in series (say, four green ones, for a total voltage=20
drop of about 8V), you could also run less current to each one, and use=20
less total power than if you only used one.