CV1120 @ The Valve Museum

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CV1120

Sensibly equivalent^¶ to:

NU33 SU2150A VU120

Extras ▼

Cossor G8LSD Valve Collection Other CV1120 exhibits

The CV1120 is an EHT half wave rectifier with a PIV rating of 14 kV. The CV valves were produced to a specification and made by more than one company. The SU2150A was the valve that best suited the design applications.

The KB/V identifies this valve as being made to specification K1001 or K1006, the B denotes qualification by a UK authority and the V identifies the maker as Cossor, Highbury, pre Sept 1945.

The saddle anode and rod cathode were hallmarks of the Cossor design.

See SU2150A for full details.

The balloon envelope is 50 mm in diameter, and excluding the B4 base pins is 112 mm tall.

References: Data-sheet, ¹⁰⁴⁰ & ¹⁰⁴³.

Pin Connections

B4	1	2	3	4	tc
	nc	nc	h,k	h	a

Absolute Maximum Operating Conditions^¶

Rectifier	Vh	Ah	Va	mAa
	2.0	1.5	5000	10

Thanks to Frank Philipse for supplying the above PDF datasheet.

Updated October 25, 2024.

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