Yoke Question

[jr_tech]

Originally Posted by Findm-Keepm

Ion trap? I've got a GE technical whitepaper describing an Ion Trap Coil - I presume they were later replaced by movable magnets?

The resistance of the coil described is 230 ohms - what does your coil ohm-out at?

Cheers,

But BOTH ends of the coil seem to be connected together and to the ground terminal, so it could not have been wired to pass current from an external source. I would have to unsolder the leads to ohm it out. Picture 3, above.

I suspect that the 3NP4 crt (which ran at 25kV) had an aluminized screen and did not require an ion trap.

Still puzzled

jr