Sensibly equivalent¶ to:
The 4304BB valve by STC is a VHF transmitting triode. The filament is just visible at the bottom of the anode cavity and is a spiral around the vertical rod that holds the wire and makes the return connection. The grid and anode are seen connecting to the top of the envelope by substantial supports.
This is a lower power version of the 4304CB which has a carbon anode.
The balloon envelope is 60 mm in diameter and, excluding the B4 base pins, is 140 mm tall.
Absolute Maximum Operating Conditions¶
Updated December31, 2012. shape:balloon construction:pinch type:triode base:b4 pins:4 pin:1.- pin:2.f pin:3.f pin:4.- pin:tc.g1 pin:tc.a