Matched Pair National Union JAN-CNU-6V6-GT VT107A 6V6 6V6GT Vacuum Tubes Milspec Gray Glass Trigon NOS NIB top D getters and anode

top D getters and anode radiators for cooler operation and extended life

They have REI and Y3E date codes

I have played it in my Bottlehead Crack headphone amp and it sounds great

Wish I knew who actually made them

This lot of six new old stock

Matched Pair National Union JAN-CNU-6V6-GT VT107A 6V6 6V6GT Vacuum Tubes Milspec Gray Glass Trigon NOS NIB top D getters and anodeThis matched pair of milspec National Union VT 107 A JAN CNU 6V6 GT gray glass output tubes was tested on our Maxi Matcher 2 with 400 volts on the plates and a bias of 36 volts for shorts, gas and transconductance. There were no shorts or gas. Transconductance measured 2230 micromhos for Tube One (Missing centering pin, marked for safe and easy insertion; see close up, Picture Three) and 2500 for Tube Two (Cracked base, tube itself neverless solidly