Controlling Pentode
The Tungsram 6DA6 / EF89 vacuum tube is a miniature RF
voltage amplifier. Mullard described the tube as a
variable ì pentode for use as an RF or IF amplifier in
FM/AM receivers and is designed to work with a tuned
anode circuit.
Electrical Date:
Filament...................6.3 Volts
Filament...................0.2 Ampere
Preferred Substitutes................6DA6,
6K4(China)