I had gotten that circuit from "somewhere", but I can't find any more. So, I'm looking at this guy:

https://www.electro-tech-online.com/...d-reset.17256/

He's using a NPN transistor, and I notice he's missing a pull-down on the base of the NPN.

I added labels to make it clear what attaches where, and I end up with this:




Do you see a problem if I have the programmer on the slave PIC at the same time as the pin from master PIC is connected?

I can always unconnect everything when I program, but I know "one day", I'm gonna rush and program with everything connected.