Sharp-Cutoff Pentode-Medium-Mu Triode
The 7199 Vacuum tube is a miniature type used in
high-quality, high-fidelity audio
equipment, particularly in phase splitters, tone-control
amplifiers and high-gain voltage amplifiers.
It requires a miniature 9-contact socket. In direct-coupled
voltage-amplifier phase-splitter circuits, the pentode
unit should drive the triode unit.
Electrical Data:
Heater Voltage ................................ 6.3 V
Heater Current ............................... 0.45 A