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Thread Starter 
This Classified is Closed

For Sale:
NOS NIB Tung-Sol (Vintage) USA 12AU7 Black Plate D GTR Black Glass Vacuum Tube

Will Ship To: Anywhere

Thanks for reading.


I purchased this tube about six weeks ago, but it has only just arrived.  In the intervening period I sold the amp that uses this tube type. 


Purchased for $85 US (before shipping) but selling for $70.00 plus shipping (I will take care of Paypal fees).


The following data was provided by the original seller:


Actual Brand: Tung-Sol (Vintage)
Printed Brand: Tung-Sol
Type: 12AU7 [ECC82]
Number of Tubes: Single
Plate Construction: Black Ribbed 17mm
Getter Construction: Top D
Country: USA
Visible Date Codes: 3221-3
Lettering Condition: Average
Box Included: 1 Box-Original
Tests NOS: Yes
Actual NOS (Some Tubes Test NOS but have a few hours on them): Yes
Notes: Black Glass
Mutual Transconductance (Gm) Test Data: 116/106 where the minimum good value is 56/56 and the New Old Stock (NOS) value is 92/92 or 100% of what a new tube should test