larryd:
Hi Tom.I use this old breadboard for soldering.
Not sure where I got the board, just realized it only has one power rail on each side.I just ordered some new machine pin headers.
Looks like they now have a bit of a bulb on the pin side.
Not sure if I like the little bulb, means the pin will only have the solder joint as support, the other type without the bulb will sit right down on the PCB.
If you use them a single test points the non bulb will be better to keep the pin vertical during soldering and support from the PCB.
They would be okay as pins into protoboard.
Needs a "suck and see" to find if they are good.
It will be interesting how they sit when you solder them.
Tom... 