6SL7GT VT-229 VALVE/TUBE SYLVANIA U.S.A. JAN GOOD USED TESTED

Here is one USED 6SL7GT twin-triode valve/tube, made by Sylvania in the U.S.A. It has been tested on the AVO valve tester, and reads: 3.0mA; 1.80mA/V. 2.4mA; 1.75mA/V.

eBay