Motorola 12T2 Restoration Restart

[Notimetolooz]

I once saw a YouTube video made from an industrial accident investigation about a fatal electrical flash-over where a voltage too high was measured with a meter. The guy was trouble shooting a large motor controller, his meter was rated to 600 V, most of the controllers in the room had 440 V on them but the one he wanted to check was, unknown to him, 10,000 V. Someone saw him running out of the room after the flash-over, the only piece of clothes unburnt on him was his belt!

[old_coot88]

Originally Posted by Winky Dink

Thanks. That's a really good thing to know. When I started working with this set five years ago I didn't have this problem--it just read 460 VDC.

That would be the averaged-out (or RMS) value of the main B+ and the high-level spikes.

I would have thought that Sams would have noted this on the voltage data chart, but perhaps this wasn’t an issue with VTVMs of that era?

The editors mighta figgered a techie already knows not to put a meter there. Certainly it would risk arcing in the meter probe or selector switch.

[Winky Dink]

Thank goodness that couldn't have happened to me--I wasn't wearing a belt.

[old_coot88]

Edit.. bad call, not funny

[Notimetolooz]

Of course we don't deal with high power. Your posts just reminded me of the story. It was only 2300 V, not 10KV. Finally found a video about it. This isn't the version I saw a couple of years ago. Gruesome descriptions, no views of the guy, just the equipment.

https://www.youtube.com/watch?v=hfnEuRA7-vo

[broadcaster]

Hey, Winky. I think that I have a NOS focus coil for that set. Will be at the storage area on Monday to verify. Charles

[broadcaster]

Hey, Winky. I have a NOS focus coil, a Stancor FC12, that should work fine in your Motorola. Price is $32, ppd. Resistance is 370 ohms. Please contact me if this will help. Broadcaster