Amperex 7699 Vacuum Tube - NOS - Hickock 539B Tested. 

The Amperex 7699 is a wide band push-pull amplifier tube for application in test
instruments~ distributed amplifiers and computers. Stability of the Class A
characteristics and low cathode interface are important features of this tube.
The push-pull construction offers a high gain hand width product coupled with
low output capacitance .. The screen and cathode, common to both halves of the
tube, result. in high input impedance due to low internal inductance. A high
dissipation of 3 W per section enables the tube to drive low load impedances.
This tube is not recommended for use in applications requiring operation in the
positive grid region.                                                         



Location:  B3
R0124