Main > Monitor/Video Forum
Help repairing/replacing this Wei-Ya chassis
grantspain:
or you could convert the yoke to low impedance and therefore have the choice of many chassis that will match
buttersoft:
--- Quote from: grantspain on February 26, 2023, 01:51:39 am ---or you could convert the yoke to low impedance and therefore have the choice of many chassis that will match
--- End quote ---
Oh, yeah, that :) hah.
Basically your vertical windings are in series right now, and you can rewire them in parallel and get a low resistance yoke. Each coil is just under 30ohms in this case, so instead of 30+30 you have (30x30)/(30+30) = just under 15 ohms. The green and yellow wires are the ones you want to desolder from the neck. I'd make sure to measure with a multimeter before ordering the new chassis though, just to check things seem ok.
ahofle:
Hmm that sounds like something I could really screw up hhaha. Any good guides out there? I can't even find a low impedance chassis at this point...
grantspain:
--- Quote from: ahofle on March 02, 2023, 11:26:11 pm ---Hmm that sounds like something I could really screw up hhaha. Any good guides out there? I can't even find a low impedance chassis at this point...
--- End quote ---
youtube has a few vids on this, its very easy
your tube has pretty standard wells gardner connectors, other makes have the same
what is your power input to the chassis and do you have an isolation transformer fitted
ahofle:
This one has a standard 2 prong 120v power plug, no Isolation Transformer (it is for a PC/MAME setup).
I'll look at some videos, but even if I do it where do I find a decent low impedance chassis?