Tube tester...

[RossW]

http://worcester.craigslist.org/atq/1712159462.html

almost definitely worth grabbing. If I was closer and had a larger vehicle I'd be all over it.

 

[electronjohn]

Cool factor is high...but they were generally just basic emissions testers designed to sell tubes.

 

[cooljjay]

Someone should get it, they are cool but not very good for testing. What I have heard is that drug stores would play with the calibration to make tubes test weaker then they really are to sell more tubes. I have one by the way.

 

[zman]

Excellent deal. I paid 25 buck back in 1992 for a "Thrifty store" Tube tester.
It had a great lit sign that said RCA tubes.
Sold recently for 100.