Sylvania 12AT7 Blackplate

In stock

Sylvania 12AT7 black plate

Perfect robust medium-gain double triode NOS tube from Sylvania for both guitar and audio applications.

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More Information
Tube type 12AT7
Manufacturer/Brand Sylvania
Production NOS
Tube kind Signaltube
Construction Dual Triode
Pin Layout Noval 9 pins
Country of Manufacture United States

Sylvania 12AT7 Black Plate
This NOS Sylvania 12AT7 double triode with medium gain. Popular in guitar and audio amplifiers as driver and phase inverter because the 12AT7 can deliver almost 10 times more power than a 12AX7.

In 1931 Hygrade Sylvania Corporation was founded by three companies including the Sylvania Products Company. At the beginning of the last century, the other two companies were still busy repairing light bulbs by opening them and installing new filaments or glow plugs and then burning the glass again.
Sylvania has been involved in a legal battle with the giant General Electric since the early thirties because of the rights to produce fluorescent tubes. From the beginning of the forties, the name is changed to Sylvania Electric Products, Inc. With the corresponding lightning bolt 'S'.

Between the 40s and 50s the production of all kinds of electrical products including radios and TVs was well underway and one after the other factory was opened
In the early Sixties Sylvania introduced its so-called 'Gold Brand' series a semi-industrial tube with three mica spacers, gold connectors and gold lettering. This series is now very popular and high prices are paid for these tubes.