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Figured out pins for the electron gun

A project log for Fun with CRTs

Because why not?

floppidydingoFloppidyDingo 04/26/2016 at 03:420 Comments

So I took a look at the electron gun, and the connector attached to it has 5 wires: Red, Brown, Yellow, Purple, and Black. The Black wire is ground, the Brown wire is the heater, the Yellow wire is what looks like the control grid, and the Red and Purple wires look like focusing anodes. And then there's that hole looking thing in the side of the tube where the flyback transformer plugs into. What voltages I need to operate everything, I'll find out next. And then I'll figure out the coil thingies, and start making patterns.


Oops, I got some of that wrong. So the yellow wire is the cathode and i apply a negative voltage to it. The purple wire is the control grid (G1) and I can leave it unconnected for now, but I apply a negative voltage to it if i want to use it. The red wire is the screen grid (G2) and I apply a positive voltage to it. There are more grids in the tube, but they're taken care of for me by the neck board or the tube itself.

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