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DV-5

 
See also:
DV and DL valves - Isolantite
    
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The De Forest DV-5 is an amplifier triode designed with a nominal filament voltage of six volts. The base is the ceramic Isolantite.
The original packing was a printed metal can. It gives the design use as an audio amplifier and had a greater output than the earlier DV-2.
Thanks to Joe Gruber for sending the images.
The wide glass tube envelope is 32 mm in diameter and, excluding the UV base pins, is 99 mm tall.
Reference: Joe Gruber. Type DV-5 was first introduced in 1925.

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
6.0
0.25
90-180
Updated September 22, 2020.
shape:wide.glass.tube construction:pinch type:triode age:1920.1930 base:uv heater:6.0v pins:4 pin:
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