U52 Rare old GEC logo codes U52 FJ 4 U52 GJ 4 black plate cup getter CV575 CV1071 tested 100%

U52 GEC black plate codes on glass £ 600  pair

Description

The U52 aka 5U4G is one of the best selling valve here at Audio Magical.

We had many requests about this valve and its variation.

We thought it is our commitment to show all that is available for this directly heated full wave rectifier that saw the light in the 1940s.

With a rating of 500 Volts on the anode, the U52 remains the best option for any vintage and modern set.

Please browse through all we have including precious Mullard long cone long glass U52 (5U4G) and other variations.

Pair GEC U52 oval label black plate full wave rectifiers with cup getter.

Both valves have same design with codes FJ 4 and GJ 4 on glass.

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

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