The ECL11 is an audio triode pentode introduced at the Berlin radio show in 1939. The triode is a voltage amplifier and the pentode is an output stage.
The classic envelope is - mm in diameter, and excluding the footless base pins is - mm tall.
Reference: Datasheet. Type ECL11 was first introduced in 1939.
Absolute Maximum Operating Conditions¶
Updated February 20, 2013. shape:classic construction:pinch type:triode.pentode age:1930.1940 base:footless heater:6.3v pins:8 pin:1.a(t) pin:2.g1(t) pin:3.k pin:4.a pin:5.h pin:6.h pin:7.g2 pin:8.g1