[sdiy] Is this a comparator?

[Richard Wentk]

On 31 Oct 2007, at 13:55, Needham, Alan wrote:

> I would call it a MAX function ?
> Could be done with a couple of diodes, one from input to output,
> one from threshold source to output, whichever diode is forward- 
> biassed
> will supply the output.

Yep. By far the simplest and cheapest way to do this.

Switches etc are complete overkill.

Richard