Marconi

Marconi Co

 

July 1954.
 
.


The Marconi Company should not be confused with the Marconi Corporation which was created in 1999, by the renaming of The General Electric Company (GEC) less the Marconi Electronic Systems business.

Up to 1963, the term Marconi Co was often used as shorthand for Marconi's Wireless Telegraph Co.

1963 Marconi's Wireless Telegraph Co, a subsidiary of the English Electric Co, was renamed the Marconi Company

1968 Queen's Award to Industry for Technological Innovation

1968 English Electric Co was taken over by GEC

1968 Marconi was incorporated in the new divisions of GEC group.

1987 Renamed GEC-Marconi.

1998 Creation of Marconi Electronic Systems Ltd (MES) incorporating the defence electronics and naval shipbuilding businesses of GEC

1999 MES acquired by British Aerospace (BAe), later becoming part of BAE Systems.

1999 GEC was renamed Marconi plc, which in turn became Marconi Corporation plc in 2003.

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MARCONI OSRAM 5U4G MILITARY U52 BROWN BASE 1955 PRODUCTION

Here we have a single 5U4G, a military specification U52 DIRECTLY HEATED TAPE FILAMENT rectifier manufactured by Marconi Osram at their Hammersmith Brook Green factory which carries both white inked print and the etched elliptical wartime cartouche. This valve shows excellent bright getter and has the inverted getter pan situated down by the glass pinch, it tests as EXCELLENT using my Avo VCM163 valve tester. This exquisite device carries good white print, the classic U52 envelope shape and the trademark rounded brown low loss micanol base - simply super. The pobverse of the vale carries a large MArconi blue and white decal. Device test data: Ia = 120.0mA for both diode sections. Device specification 120mA delivery for both diode sections. So you can see we have 100% emission from this venerable beauty.
¥29,228

MARCONI OSRAM CV1071 MILITARY U52 BROWN BASE 1955 PRODUCTION

Here we have a single CV1071, a military specification U52 DIRECTLY HEATED TAPE FILAMENT rectifier manufactured by Marconi Osram at their Hammersmith Brook Green factory and carrying the cartouche code for August 1955. This valve shows excellent bright getter and has the inverted getter pan situated down by the glass pinch, the valve base is very slightly loose on the envelope, however, more importantly it tests as EXCELLENT using my Avo VCM163 valve tester. This exquisite device carries good white print, the classic U52 envelope shape and the trademark rounded brown low loss micanol base - simply super. The pobverse of the vale carries a large MArconi blue and white decal. Device test data: Ia = 120.0mA for both diode sections. Device specification 120mA delivery for both diode sections. So you can see we have 100% emission from this venerable beauty.
¥29,228

MARCONI U70 BOXED NEW 1950S

On offer today we have a Marconi U70 / 6X5GT rectifier. This device is new boxed stock from the 1960s and has markings in white ink. The valve shows 100% emission and has a fat black low loss micanol base tight to the envelope with bright uncorroded pins - a very nice valve indeed!.
¥7,307