U52 GEC CV575 tall glass black plate Square getter original boxes 5U4G KB/Z pair audio rectifiers

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.

Lovely pair of genuine U52 GEC with original boxes KB/Z on glass

High vacuum valves with black plate and square getter.

GEC logo on both valves with valve type U52 CV575 5U4G  on glass

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