12AX7 / ECC83 Amperex “Bugle Boy” (Holland)

This is a miniature type tube used as a phase inverter or a twin resistance-coupled amplifier in radio equipment.

These tubes were acquired from a special source. 

This is a miniature type tube used as a phase inverter or a twin resistance-coupled amplifier in radio equipment.  Each triode unit is independent of the other except for the common heater.

These tubes were acquired from a special source.  Made in the  early 1960’s, tested and white boxed with labels.