These valves have been specially selected for matching gain between the two internal triodes (and also between the four valves). If you need a matched set of balanced triodes, just buy two. These valves are limited in number and are also advertised elsewhere.
JJ describe this valve as harmonically rich, with a detailed low end and a warm high end. It is a spiral filament valve designed for very low noise and microphonic susceptibility.
4 in stock
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