6922 E88CC SYLVANIA USN-CHS GOLD PINS GRAY-PLATE SINGLE TUBES AMPLITREX TESTED
USN CHS 6922 = E88CC. AMPLITREX DIGITALLY TESTED. Actual tube was tested on the State-of-the-Art AMPLITREX AT-1000 Electron Tube Test System. ALL PASSED THE AMPLITREX DIGITAL TESTS = NO GAS and NO HEATER-TO-CATHODE LEAKS!
