Il giorno venerdì 10 novembre 2017 10:04:24 UTC+1, Mike Coon ha scritto:
In article ,
says...

bitrex wrote:

Michael A Terrell wrote:

bitrex wrote:

Michael A Terrell wrote:

A common as dirt filament tester. They were common as dirt, and
sold for about $3 in the early '60s. They hyped as real tube testers.

"It Does What It Says on the Tin"

Just like the cans of 'Replacement Vacuum'?


How do I get the vacuum out of the can and back in the tube, though?


That was explained on the tin, not in the ads.

I like that idea. Did you have to wear a space-suit in case any vacuum
got spilled?

Mike.

complementary XKCD comic about vacuum:
https://xkcd.com/1486/

also careful about WHERE vacuum is:
https://what-if.xkcd.com/6/

Bye Jack