Motorola 19K1 restoration

[bandersen]

I've been making steady progress in between other projects.

First off, I found where that second doorknob capacitor should be. I think I can dig up another good one from another set. Meanwhile, I'll just stick with this one.


I've replaced the power resistors and electrolytics and most of the paper caps.


Time to do a little power up test with no tubes. No smoke and the transformer voltages look good.


One of the control lights lit up, but I think the other is burned out.


Next, I popped in a few tubes including one of the paralleled 5U4 rectifiers and slowly cranked up the variac.


All the voltages looked good, but I detected a nasty smell after a few minutes. A little sniffing located this fried capacitor. Time for a little more recaping All told, things are looking very good for a first power up.