[time-nuts] 5071A tube EEPROM and tube data

[Corby Dawson]

"The HP tubes used a heated metal "burst" diaphragm not glass ampoules
to"

Dave,

Actually, YES.

I dug up the oven I had opened up and it is as I remembered.

The cesium ampoule is all metal and sits upside down in the center of the
"wicking" screen.

The center of the burst diaphragm is welded to a post that comes out the
top of the oven via an insulated feedthru.

When they want to free the cesium they apply a high current thru the post
and it melts a hole where the post was welded to the diaphragm.

NO glass inside the wicking or inside the ampoule.

I'm not saying other tubes dont have glass but HP tubes DO NOT.

I'll see if I can look thru my box of ovens and if I have an FTS oven
I'll cut it open and see.

Corby Dawson

I do have PIX of the above but nowhere to post them!
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