[sdiy] Improving LED response when driven from half-wave rectifier

[Neil Johnson]

Tom Wiltshire wrote:
> Like this one?
>
> http://webphysics.davidson.edu/Course_Material/Py310/WK13_circuit3.jpg
>
> (replace 'load' with 'LEDs')
>
> It *is* beautifully simple.

Yep.  That's what I have in the DuaLFO, with bicolour LEDs in place of 
'Load'.  I couldn't think of anything simpler at the time.

Neil
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