alpha dials and inc/dec buttons

[Paul Perry]

At 05:59 PM 9/09/98 -0500, you wrote:

>basically, I just need this circuit to send pulses on the inc line when
>the pot is turned right, and pulses on the dec line when turned left..
>Is this possible? 

yes, look at "rotary contacting encoders".
These come in various shapes, precision etc, priced down to $10 or so.
As they rotate they put out binary output on 2 pins & the phase says which way 
it is rotating. The model robot guys love them.
I'm not Mr logic, but it looks like an encoder and one logic chip shd do it.
I'd like to see a ckt too!

paul perry melbourne australia

And, I'd like to find a source of small rectangular 'chiclet' buttond for 
PCB mount, or similar, say 4mm by 8mm or around there.