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UV201

Sensibly equivalent to:
201 C-301
    
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Initially in 1920 RCA are selling the soft detector UV200 (argon gas filling) and the hard UV201 Amplifier. Both made at first by General Electric. Both tubes are operated with a filament current of 1 ampere and at 5 volts.
In 1922 General Electric replaces the bright UV201 with the dull UV201A (thoriated tungsten filament).
The original RCA logo. The internal construction is close to the earlier VT-14.
The original box. With the RC logo this is a rare find.
Thanks to Joe Gruber for sending the images.
The envelope is  mm in diameter and, excluding the base pins, is  mm tall.
References: 1047Joe Gruber. Type UV201 was first introduced in 1920.

 

Pin Connections
UV
1
2
3
4
g1
f
f
a

 

Absolute Maximum Operating Conditions
Triode
Vh
Ah
Va
5.0
1.0
20-100
Updated February 10, 2021.
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