An unusual piece of test equipment found its way into my collection of worn, forlorn anachronous electronic items.
The Triumph Manufacturing Company of Chicago made this wonderful Model 830 Oscillograph Wobbulator.
An excellent description of this item can be found here... http://richardsears.wordpress.com/2011/09/08/triumph-830-wobbulator-oscillograph/
When I first started to examine it for possible restoration, it was clear that it would require more hacking than I'd hoped, some key parts have been removed. I will simply clean it up and use it as an unusual bookend.
The most beautiful thing I found inside is the CRT - I may display it in a little case. It is a beautiful example of early CRT technology.
Dumont 2501A3 CRT
This is a Dumont 2501A3 CRT, a 3" medium-persistance green fluorescent tube, using electrostatic focus. Inside the glass tube near the base, some hand-painted numbers suggest a manufacture date of January 1941, coinciding with the earliest appearance of data that I have found for this tube.
