Manufactured in the 1930's for the US military, this Western Electric WE249B tube has a 1930's has an engraved base and has a tested label adhered. In original box. $309.99
249B is similar to 866A. Vfil is 2.5V., whereas 866A is 3.0 Vfil.
Recommended for the following amps: D-6656 RTE, Navy D-97502 Rectifier, 14A Rectifier, 99A Amplifier, 100A Amplifier.
The Western Electric 336A tube was used in speech input equipment and the 106 type amplifier. These are very rare, and we were lucky enough to get 4 pcs in stock NOS in original boxes. $499.99 per tube.