Sensibly equivalent¶ to:
The 10C1 is a triode heptode mixer. This example is of early B8A base design with a metal skirt, spigot and locating pip. The locating pip was required as the pins were equally spaced around the glass base disc.
The screen prevents close inspection of the electrode assembly but the heptode anode is on the left. The triode is on the right. The heptode cathode is also far to the right. See 6K8 for the basic construction plan when applied to a hexode mixer.
The thin glass tube envelope is 20 mm in diameter, and excluding the B8A base pins is 53 mm tall.
References: Datasheet & 1040. Type 10C1 was first introduced in 1947.
Absolute Maximum Operating Conditions¶
PDF scanned from an original document held by the museum
Updated June 23, 2013. shape:thin.glass.tube construction:all.glass type:triode.heptode age:1940.1950 base:b8a heater:100ma pins:8 pin:1.h pin:2.a pin:3.a(t) pin:4.g1(t).g3 pin:5.g2.g4 pin:6.g1 pin:7.k pin:8.h