One- Telefunken ECF83 NOS Vintage Electronic Tubes
$ 4.2
Description
For your consideration is one Telefunken NOS ECF-83 . The tube was tested on a Hickok 539C were the minimum reading is 900gm/1000gmgm and the reading for a new tube is 1384gm/1538gmgm or better. The tube tested at 2500gm/2600gm
