UNUSED GEC MARCONI U52 5U4G BRITISH MADE IN 1951 MATCHED PAIR OF NEW OLD STOCK NEW IN BOX BRITISH VINTAGE RECTIFIER VALVES TUBES WITH THE SAME FACTORY DATE CODES.

PLEASE NOTE : I MAY BE ABLE PROVIDE ONE MORE OF THESE AS A SEPARATE SINGLE VALVE SO PLEASE ENQUIRE.

MADE IN ENGLAND IN JANUARY OF 1951 BY THE GEC MARCONI - OSRAM VALVE COMPANY LTD HAMMER SMITH LONDON GREAT BRITAIN

THE SAME GEC MARCONI-OSRAM FACTORY CODES PRINTED IN WHITE ON THE GLASS OF THE TUBE = G A   4

LONG BLACK ANODE PLATES

CURVED BLACK BASE 

UNUSED CLEAN METAL PINS

HANGING FILAMENTS

CUP GETTERS

GEC MARCONI U52 ORIGINAL BOXES WITH FACTORY CARDBOARD PACKING

THESE NEW OLD STOCK VALVES TESTS AT 100% STRONG TESTING READINGS ON MY B&K 747 AND HICKOK TV-7 CALIBRATED VALVE TESTERS

TESTED FOR  GAS AND  SHORTS

FREE PAY PAL FEES


PLEASE NOTE : FRIENDLY LOW CUSTOMS DECLARATION FOR ALL BUYERS

FREE INTERNATIONAL AIRMAIL SHIPPING - EXCEPT TO RUSSIA

PLEASE SEE MY EXCELLENT E BAY CUSTOMER FEEDBACK AFTER OVER 15 YEARS OF SELLING VINTAGE VALVES

PLEASE SEE MY 15 YEARS EBAY SALES AWARD IN THE PHOTOS

PLEASE NOTE:

I AM AN AUDIO MAN FROM WAY BACK AND I USE VINTAGE VALVES IN MY MODERN TUBE AMPLIFIER AND TUBE PREAMP WITH WONDERFUL RESULTS. 

VINTAGE VALVES MADE IN THE GOLDEN AGE OF AUDIO AUDIO IN THE 1950'S AND 1960'S ARE SO MUCH MORE MUSICAL SOUNDING THAN THE MODERN HARSH SOUNDING RUSSIAN AND CHINESE VALVES THAT ARE SUPPLIED AS STANDARD IN TUBE AUDIO EQUIPMENT THESE DAYS.