On 9/4/2015 11:10 PM, dwight wrote: > The idea for using the tristate control for an OC output has been > used many times before. > An example is on the SwyftCard for the Apple 2e. > It needed a OC for the reset as I recall and the PAL used > that trick. > The only possible issue is the limited current drive for older > DTL circuits. > Dwight > >
Exactly - whether you can use the trick depends on what is connected to that OC output. JRJ
