Description
This listing features individually tested and selected NOS 6BH5 / EF81 pentode valves with confirmed strong emission readings, priced above standard stock to reflect additional testing and selection effort.
The EF81 is a high-transconductance sharp-cutoff pentode used in video amplifiers and wide-band circuits. New Old Stock.
Noval (9-pin) base. Supplied as a single tested valve.
