Sensibly equivalent¶ to:
4069A CV623 CV623 VT-106
The 803 transmitting pentode was made for government use only, and this suggests a special quality version. The maximum anode dissipation was designed to be 125 Watts and in Class C RF amplifier mode it could produce 155 Watts of output power.
The 803 has a thoriated tungsten filament.
See 803 for details.
The wide glass tube envelope is 60 mm in diameter and, excluding the base pins is 216 mm tall.
Reference: Datasheet. Type 803 was first introduced in 1937.
Absolute Maximum Operating Conditions¶
Updated January 02, 2013. shape:wide.glass.tube construction:pinch type:pentode age:1930.1940 base: pins:5 pin:1.f pin:2.g2 pin:3.g1 pin:4.g3 pin:5.f pin:tc.a