52KU Cossor BVA black plate round getter white print on glass GZ32 5V4G equivalent pair rectifiers tested 100%
52KU Cossor BVA black plate round getter white print on glass GZ32 5V4G equivalent pair rectifiers tested 100% - Image 2
52KU Cossor BVA black plate round getter white print on glass GZ32 5V4G equivalent pair rectifiers tested 100% - Image 3
52KU Cossor BVA black plate round getter white print on glass GZ32 5V4G equivalent pair rectifiers tested 100% - Image 4
52KU Cossor BVA black plate round getter white print on glass GZ32 5V4G equivalent pair rectifiers tested 100% - Image 5
52KU Cossor BVA black plate round getter white print on glass GZ32 5V4G equivalent pair rectifiers tested 100% - Image 6
52KU Cossor BVA black plate round getter white print on glass GZ32 5V4G equivalent pair rectifiers tested 100% - Image 7

52KU Cossor BVA black plate round getter white print on glass GZ32 5V4G equivalent pair rectifiers tested 100%

Cossor 52KU white print on glass £ 350 pair

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Description

The 52KU was the answer to the Mullard GZ32.

The 52KU  is an indirectly heated full wave rectifier and together with the U52 the 53KU, GZ37 etc. they are the most sought after valves here at AM.

It was made to cope with all medium power sets including most vintage amplifiers.

Cossor started production of the 52KU circa 1949.

Pair of Cossor  white label type 52KU for sale here feature black ribbed plate with  getter located in the middle of envelope. A well engineered valve that lasts longer than any other counterpart, delivering excellent rectification.

Clean top and in great shape.

Tested with AVO VCM 163 with A1=A2 100% emission

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