- Saint Petersburg, Florida, United States
- Oct 28th
SUPERIOR INSTRUMENT COMPANY MODEL TV-11 VACUUM TUBE TESTER This unit is designed to test your radio / tv vacuum tubes and is a simple emission tester for quick culling out of bad tubes. It will test: 4,5,6,7 pin large base; 8 pin octals; 7 & 9 pin miniatures; 8 pin micro; 7 pin inline tubes. Of special interest is the ability to test the very oldest of tubes with 2 digit numbers like 19, 20, 57, etc.