Vacuum Tube Prototyping Board

[LeftyStrat]

Came across this:

http://diyaudioprojects.blogspot.com/20 ... board.html

Exactly what are the voltage ratings for breadboards?

[jazbo8]

The small white protoboard is not suitable for HV it was intended for ICs and LV transistors, etc., so check out tubelab's modular prototype board for tubes, it's good for may be 1KV (perhaps more if you dare)...

Jaz

http://www.tubelab.com/The_Tubelab.htm

[LeftyStrat]

The small white protoboard is not suitable for HV it was intended for ICs and LV transistors, etc., so check out tubelab's modular prototype board for tubes, it's good for may be 1KV (perhaps more if you dare)...

Jaz

http://www.tubelab.com/The_Tubelab.htm

That's what I thought. Maybe someone needs to tell the guy before he electrocutes himself.

[JazzGuitarGimp]

IIRC, arcs in free air don't start until about 1mm per 1KV, so a 500V B+ would need to be spaced at about 1/2mm (about 0.020") or less to arc. The white board should actually work, in my estimation. Would I do it? Probably not.

[printer2]

Works just fine. The question is the distance and insulation between two points of voltage. The prototype board shown has no high voltage points close to each other so it is safe. Lots of air and plastic between. I have done some quick prototyping with the same boards with two or three traces between high voltage points.