- All tubes have been previously owned &/or used
- I have no idea how many hours they may have been used prior
- I have personally not used any of the tubes for more than 10 hours
- All work very well, except were noted
- Each tube will ship in a sturdy container and will be well packaged
- Price includes CONUS shipping and PayPal fee

All the tubes were audibly tested by me with a Schiit Lyr 3 amp and Massdrop TR-X00 headphones

Here is what the abbreviations stand for:

LG --- Low Gain
HG --- High Gain
SCP - Snap, Crackle, Pop - My term for when a tube makes noises that are audible above the tube's noise floor
NA --- Tubes noise floor is Not Audible
BA --- Tubes noise floor is Barely Audible
MA -- Tubes noise floor is Moderately Audible
A ----- Tubes noise floor is Audible
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- GE (RCA) 6SN7GT (Grey Glass) - $70
Staggered Black Plates - Bottom Getter
LG-BA - HG-A - SCP-No

- KEN-RAD 6SN7GT (Black Glass) - $100
LG-NA - HG-MA - SCP-No

- Sylvania 6SN7GTA (Metal Base) - $120
LG-NA - HG-MA - SCP-Yes
FYI - This tube occasionally has intermittent SCP during the first few minutes of warm-up. After that, the SCP goes away. It is barely audible in LG and audible in HG.

- Tele-tone (RCA) 6SN7GT (Grey Glass) - $70
Staggered Black Plates - Bottom "D" Getter
LG-NA - HG-A - SCP-No