- NOS NIB
- Matched Construction
- Black Plates
- "O" Getters
- Date Codes: BD,BJ,B?,CR
Value Added Tubes
- Pins Cleaned & Straightened with Proprietary Process
- Tube Surfaces Cleaned
- Plug & Play
TESTING
TV-7A/U
Tubes Tested on a NOS Reference TV-7A/U Tester
Tubes Test as Follows:
The Hickok Minimum for a 6BZ7 Tube is: 32/32. The Calculated Average for NOS 6BZ7 Tubes is: 49/49.
Murphy's Law:
"All Tube Testers are Wrong but Some are Useful"
The results of your tube tester may vary from these measurements.