Description: This listing is for a NOS matched / balanced pair of NOS CBS JAN 12AU7 Tubes TEST RESULTS: NO SHORTS, NO LEAKAGES, NO GAS Tube 1: Side 1: 98 = 2,450 uMhos Transconductance(Gm) at 9.2 mA (Ia =Anode Plate Current) Side 2: 100 = 2,500 uMhos Transconductance(Gm) at 9.7 mA (Ia =Anode Plate Current) Tube 2: Side 1: 100 = 2,500 uMhos Transconductance(Gm) at 9.2 mA (Ia =Anode Plate Current) Side 2: 97 = 2,425 uMhos Transconductance(Gm) at 8.6 mA (Ia =Anode Plate Current) Physical Characteristics on both tubes: (See all Pics) - Black Plates - One Marked CBS JAN 12AU7, other one silkscreen rubbed off. - Halo getter, copper rods - Date Code 1/60 (1960) For Reference: The Minimum good value for a ECC82/12AU7 tube tested on all TV7 versions is 56/56 = 1,400/1,400 uMhos Gm 'Bogey': Factory Data Sheet NOS when new is 88/88 = 2,200/2,200 ( ) uMhos Transconductance (Gm) at 10.5/10.5 mA Anode Plate Current Dissipation. Our Test Set: Dan Nelson restored, upgraded and calibrated, TV7A/U with Digital Meter reading Transconductance in uMhos (Gm) and mA (Anode Plate Current). WE PACK VERY WELL FOR SAFE SHIPPING WORLDWIDE. WE SHIP FAST. MANY YEARS EXPERIECE SHIPPING FRAGILE TUBES AND VINTAGE ELECTRONICS.
Price: 45 USD
Location: Rileyville, Virginia
End Time: 2024-08-13T16:31:21.000Z
Shipping Cost: N/A USD
Product Images
Item Specifics
Restocking Fee: No
Return shipping will be paid by: Seller
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money back or replacement (buyer's choice)
Brand: CBS
Type: 12Au7
Model: JAN
Country/Region of Manufacture: United States
