Quote:
Originally Posted by Chris K
Thanks...already have an issue! The NOS coil has 3 tabs like the original. If I'm reading the description that came in the box and looking at the coil itself, tabs 1 and 3 are the ins and outs of the coil winding. What would tab 2 be...a ground??? I don't see that depicted in the schematic. Anyway, here's the schematic of the horizontal circuit part where the waveform coil resides.
So from the looks of it, I connect pins 1 and 3 to the leads going to the 0.01uF capacitor on the board?
I did this and now...no picture or horizontal signal. I checked it at the horizontal hold control with my scope and nothing. No horizontal waveform and no picture. Now, as most of you know, this is probably an idiotic screw up on my part...a tube knocked loose, a bad solder joint etc....Before the replacement of the waveform coil, I had a picture that was sharp and bright, just unstable and distorted horizontally
I guess my question is could a mis-wired waveform coil completely eliminate the horizontal signal coming out of the oscillator or should I still have the signal at W11 even if it's not wired correctly or is missing? If it could affect the horizontal signal from the 8CG7 and I remove the new coil, should I get a double peaked horizontal trace at W11 and does removing it seem like a good troubleshooting strategy? |
looking at the paperwork from the box, pin 2 = NC , No Connection, so it's just there to keep the thing stable.
https://www.ebay.com/itm/195881922845
You should be able to do a resistance test from pins 1-3 on the new in circuit and it should be rather close to the one that was removed.