Matched Pair OTK 6V6 6V6GT Black Glass Vacuum Tubes NOS-Testing I Robot

Matched Pair OTK 6V6 6V6GT Black Glass Vacuum Tubes NOS-Testing I RobotThis matched pair of OTK MANUFACTURED black glass 6V6GT output tubes was tested on our Maxi Matcher 2 for shorts, gas and transconductance. There were no shorts or gas. Plate current measured 20. 2 milliamps and transconductance was 2460 micromhos for Tube One (Raytheon BRANDED). Tube Two (Ameco BRANDED) measured 21. 9 2460. (New US made 6V6s typically test with plate current from the mid teens to mid 30s with transconductance from 2300 micromhos or

5 amps for their filaments as compared to

Plates: black/dark gray rounded plate

This matched pair of Ken-Rad Type 35 tubes was tested on our Paul Hart-calibrated TV7/U for shorts

Sorry about the boxes

Sperry-BRANDED (SPL) 6V6GT output tubes was tested on our Maxi-Matcher 2 in Real World conditions with 400 volts on the plates and a bias of -36 volts for shorts

This quad of US-made 6211 dual triodes was tested on our Hickok 800 for shorts

micromhos)

This GE 6EH4 tube tested to spec on our Paul Hart-calibrated TV7/U

They are dead quiet when the CD player is paused and have excellent frequency response

new in box

These end links appear to be made of stainless steel and rose gold or copper

Plates: gray ladder plate