Raytheon 717A VT-269 JAN-CRP-717A Vacuum Tube Duodecar Plate Cap There is a hairline crack

There is a hairline crack in the base of Tube Two

anode radiators

made on the same equipment by the same people

This Sylvania number / type 36 tube tested to spec on our Paul Hart-calibrated TV7/U

dark gray rounded plates and excellent flashing

Raytheon 717A VT-269 JAN-CRP-717A Vacuum Tube Duodecar Plate Cap There is a hairline crackThis milspec Raytheon 717A JAN CRP 717A VT 269 tube was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 20 where minimum (65%) is 16 and 100% is 25. It has World War Two era SC 8762A US Army Signal Corp codes and a nifty US Navy anchor logo. I am playing it as I write in my Musical Paradise MP 301 MK3 and it sounds excellent. WE HAVE SCORES OF THOUSANDS OF VACUUM