Product code: Vintage Supreme Instruments Corp Model on sale 589-A Portable Battery Vacuum Tube Tester
This is untested. I freed up the rusty hinges but have done no testing on sale. The cord is stiff but appears undamaged (so far!). Leather handle still works. Sold as is, for parts. Looks pretty still!.
This is untested. I freed up the rusty hinges but have done no testing on sale. The cord is stiff but appears undamaged (so far!). Leather handle still works. Sold as is, for parts. Looks pretty still!.