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CV1120 / CV1290 halfwave rectifier
See below for more examples of this valve.
Internal views. The mica shield presumably protects the electrode structure from the getter. |
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The CV Register shows the CV1290 as equivalent to the SU2150A, and the CV1120 as a possible replacement. However the example in the first picture above shows both SU2150A and CV1120. See also CV1001 |
CV1290 |
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Elliott CV1120 in a different bulb | |||||||||||||||||||||||
Cossor SU2150A example showing a different internal structure. | Another Cossor example, this one also carrying 10E/121 and a screw top
cap |
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Another CV1120 | |||||||||||||||||||||||
Westinghouse Radiotron VU120, again with a different internal structure. | |||||||||||||||||||||||
NU33 |