Mullard 12AT7

In stock

Mullard 12AT7

The Mullard 12AT7 medium-gain double triode for both guitar and audio applications

This item is in stock;
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More Information
Tube type 12AT7
Manufacturer/Brand Mullard
Production New
Tube kind Signaltube
Construction Pentode
Pin Layout Noval 9 pins
Country of Manufacture Russia

Mullard 12AT7
The 12AT7 is a 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 or 5751.

The Mullard Radio Valve Company, founded in 1920 by captain Stanley R. Mullard, has been the leading pipe manufacturer in the UK. Co-founder of the BBC and producer of one of the most famous pentodes the 'EL34' a Philips invented and patented process to counteract the unwanted secondary emission of electrons with the help of a third grid (the supressor grid). Philips took over all shares in Mullard in 1927 and built a factory for the manufacture of radios in the thirties alongside a Mullard factory in Mitchum. The best known tube is of course the EL34 introduced in 1949 by Philips manufactured with the aforementioned patented surpressor grid so that together with the other four electrodes namely the Cathode, the Anode, the Control grid, the Screen grid a so-called pentode tube arose, pentode derived of Ancient Greek Penta which means five.
Mullard was taken over in 2007 by the American New Sensor and produces under this name several Mullard classics including of course the EL84 which we have standard in our product range in matched sets of two and four pieces.

Besides the Mullard 12AT7 we also sell the premium Genalex 12AT7 / ECC81 / B739, the Tung-Sol 12AT7W and the affordable 12AT7 from TAD and Electro Harmonix.