Tubemaster tube and battery tester.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...r_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h...ery_tester.jpg
Previously:
https://www.homemadetools.net/forum/...450#post131750
Printable View
Tubemaster tube and battery tester.
Fullsize image: https://s3-us-west-1.amazonaws.com/h...r_fullsize.jpg
https://s3-us-west-1.amazonaws.com/h...ery_tester.jpg
Previously:
https://www.homemadetools.net/forum/...450#post131750
Oh man; that brings back memories...used to have something like that in our electronics shop back in HS (early-mid 70's). Our teacher used to rent us kids in his advanced class out to faculty members to go fix their teevees with the tester in tow.
There is one of these at Elliott Electronics in Tucson.
I am not at all surprised, their back shelves are a treasure trove of old gear. I'll have to look the next time I go there...I wouldn't actually be surprised if it was ours; they dismantled all the shop classes in my HS back in the 80's :-(