Triode-Heptode
The ECH84 Vacuum tube is a Noval type. It was used in
Radio and Television applications. The Heptode unit has
straight characteristics and makes it suited as an AM
modulator.
Electrical Data:
Heater Voltage ................................ 6.3 V
Heater Current ................................ 0.3 A
Prefered Substitutes ......................... 6JX8
Substitutes .................................. 6ET5