Meck XB-702 restoration

[bandersen]

Thanks for the offer, but luckily I have a few spares. I'm also considering adding a separate filament transformer for the CRT. Then I can keep using the shorted one.

Meanwhile, here it is with a 7VP1 scope CRT.


There is still some 60 cycle leaking into the horizontal. Pretty much looks like it did before.


The vertical is much better though. I was getting seasick trying to watch it before. I'll poke around a bit more, but I think I could live with this.

[old_coot88]

Originally Posted by bandersen

...I'm also considering adding a separate filament transformer for the CRT. Then I can keep using the shorted one.

A transformer will add some parasitic capacitance-to-ground, which might cause smearing of fine detail in the pic. To minimize any capacitance effect, try to find a xfmr that's physically small as possible consistent with required heater current.