Sensibly equivalent¶ to:
The 832 is an American dual transmitting tetrode. We also have the later 832A in the museum.
The design the American type with two separate valves sealed into the single element, contrast this with QQE03-20 which is the classic European pattern. In use the American valves require external neutralisation capacitors whereas the European type has the capacitors built-in.
This valve was obsolete by the start of the 1960s replaced by the QQV03-20 or QQV06-40A varieties. It is typical of these RF power tetrodes that the base connections all match one another.
We cannot find accurate introduction date information but early to mid 1940's seems probable.
The wide glass tube envelope reaches a maximum diameter of 56 mm, and excluding the B7A base pins, is 52 mm tall.
Absolute Maximum Operating Conditions¶
Updated April 04, 2015. shape:wide.glass.tube construction:all.glass type:double.beam.tetrode age:1940.1950 base:b7a heater:6.3v pins:7 pin:1.h pin:2.g1(2) pin:3.g2 pin:4.k.bp pin:5.hct pin:6.g1 pin:7.h pin:tc.a pin:tc.a(2)