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SU2150A

Sensibly equivalent to:
CV1120 CV1290 NU33 VU120
    
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Cossor designed and made EHT rectifiers such as the SU2150A for use in CRT power supplies. Because the Cossor works tended to employ skilled glass-blowers and because they were designing for a very limited market, the Cossor EHT rectifiers were hand made.
The maximum reservoir capacitor is 0.25 µF, and the minimum series resistance is 10 kΩ.
This exhibit has the balloon envelope and lettering printed onto the glass.
The saddle anode is connected to the top cap and is supported on glass pillars. The cathode assembly is always at least 6 mm distant from the anode, and is a horizontal rod.
Thanks to Mark Mallison for sending the images.
The balloon envelope is 47 mm in diameter and, excluding the B4 base pins, is 108 mm tall.
Reference: 1040.

 

Pin Connections
B4
1
2
3
4
tc
-
-
h,k
h
a

 

Absolute Maximum Operating Conditions
Rectifier
Vh
Ah
Va
mAa
2.0
1.5
5000
10
Updated October 13, 2019.
shape:balloon construction:pinch type:rectifier.hw age:1930.1940 base:b4 heater:2.0v pins:4 pin:1.- pin:2.- pin:3.h.k pin:4.h pin:tc.a
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