Re: Trouble with the "improved" IR transmitter circuit

[Stephen D. <st...@da...>]

On Fri, 10 May 2002, David Norwood wrote:

> > Another possibility is that I don't understand transistor schematic
> > diagrams... in building the circuit this far, I've assumed the little
> arrow
> > facing inwards is the "collector" of the PNP and the little arrow facing
> > outwards is the "emitter" of the NPN. This may not be true as it's just a
> > logical "guess" on my part.

The little arrow always denotes the emitter, whether it points in OR out.

HTH,
Steve