This is a prototype Precision 10-12 Solid State Prototype that never saw production. The meter is from a 10-12 tester. The power supply uses a top hat solid-state rectifier instead of a #80 tube. I can test tubes on this unit using the test data from a 10-12 tube tester.
The buttons for “W”, “X”, “Y”, and “Z” are individually pushed to make the connections to the tube rather than the lever switches. There is a knob that is pulled to clear the pressed buttons.
There is a “Gas” pushbutton that is not connected. There must have been plans for a gas test in this tube tester. A compactron tube socket has been added.
I would appreciate any information that anyone has about this Precision 10-xx Solid State Prototype.
Contact Me if you have a tube tester you want calibrated.
