Control three transistor switches from two pins?

it was basically impossible to solder them with the '8' tip I had in my Weller soldering iron, and had to go back to a '7'. I'm not 100% what temperatures those equate to, but it's worth keeping in mind if you have problems.

7 weller tip is 700F, 8 is 800F. They also made a 6.

IMO the 8 is too hot for everything except scavenging parts.