home
 
timeline

H210

new
 
{museum features}
Tungsram
equivalents
 
articles
Continental imports of the 1930s The Azide Process
collections
HMS Collingwood
This exhibit is labelled as a barium tube, clearly indicating an oxide cathode. The envelope also gives the heater voltage as 2.0 V and the anode voltage as 200 V. This valve is given as originally manufactured in 1929. The electrodes are pointed at an angle to the horizontal and the filament is a single 'V'.
The balloon envelope is 44 mm in diameter and, excluding the B4 base pins, is 86 mm tall.
 
Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
Vg
mAa
ra
gm
2.0
0.1
150
-1.5
1.0
50,000
0.7
More

This exhibit was last updated on 02 December 2007