Brimar

Brimar was established in 1922 and during their existance they have been part ofmany companies including: Edison Swan Electric, Cosmos, Mazda, Baird Television, Ferranti, AEI, EMI, Thorn, Marconi and The Rank Organisation.

Brimar has always been a technology led company as their varied  technical achievements show:

1906
First Fleming valve
1927
First indirectly heated triode
1930
CRT Manufacture
1932
First beam electrode
1936 
First magnetic deflected TV-CRT
1939
Radar CRT manufacture
1958
25μm spot CRT, micro spot for space agency
1960
First head up display (HUD) CRT
1966
First shadow mask colour CRT
1968
Helmet mounted CRT manufacture
1974
Fibre optic face plate tubes
1906
First Fleming valve
1927
First indirectly heated triode
1930
CRT Manufacture
1932
First beam electrode
1936 
First magnetic deflected TV-CRT
1939
Radar CRT manufacture
1958
25μm spot CRT, micro spot for space agency
1960
First head up display (HUD) CRT
1966
First shadow mask colour CRT
1968
Helmet mounted CRT manufacture
1974
Fibre optic face plate tubes

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MATCHED PAIR OF BRIMAR FOOTSCRAY TALL BOY BLACK GLASS BLACK BASE SILVER PRINT 6SN7GT 1950S MANUFACTURE

We have on offer today, a beautiful matched pair one of these sonically lush high performance triodes. These devices carry markings in silver ink on the fat black micanol base, the envelope is carbonised black glass 2 inch high. Both were produced at the Brimar - STC Footscray works. Both devices show good emission and close matching not only for each triode section within each envelope but inter valve too.
¥1,529.13

OSRAM 10E/373 RAF AIR MINISTRY U52 BLACK BASE WARTIME PRODUCTION

Here we have a single 10E/373 an Air Ministry military specification U52 DIRECTLY HEATED TAPE FILAMENT rectifier manufactured by Osram at their Hammersmith Brook Green factory sometime during the war years. This valve shows excellent bright getter and has the inverted getter pan situated down by the glass pinch, however, more importantly it tests as EXCELLENT using my Avo VCM163 valve tester. The valve is fitted with the Air Ministry trademark shrink ccollar encircling the envelope and base which was a palliative measure to prevent separation in hiogh altitude applications. This exquisite device carries good white print, the classic U52 envelope shape and the trademark rounded black low loss micanol base - simply super. 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.
¥1,703.89

OSRAM 10E/373 RAF AIR MINISTRY U52 BLACK BASE WARTIME PRODUCTION

Here we have a single 10E/373 an AIr Ministry military specification U52 DIRECTLY HEATED TAPE FILAMENT rectifier manufactured by Osram at their Hammersmith Brook Green factory sometime during the war years. This valve shows excellent bright getter and has the inverted getter pan situated down by the glass pinch, 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 black low loss micanol base - simply super. 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.
¥1,703.89

OSRAM CV575 MILITARY U52 BLACK BASE 1953 PRODUCTION

Here we have a single U52 DIRECTLY HEATED TAPE FILAMENT rectifier manufactured by Osram at their Hammersmith UK factory and carrying the cartouche code for March 1953 This valve shows excellent bright getter and has the inverted getter pansituated 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 black low loss micanol base - simply super. 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.
¥1,878.65

STC BRIMAR 12AU7 ECC82 18mm LONG ANODE MATCHED PAIR SAME FACTORY CODE

On offer we have a beautiful matched pair of 18mm, 'long plate' white print STC Brimar 12AU7/ ECC82 carrying identical factory codes of 1413. These devices present with superb matching both within the envelope and inter device. These devices have tested on our AVO VCM163 valve tester as having nominal emission with very close matching for each triode section within the envelope. A21: Section 1: Ia = 10.5 mA; gm = 1.9 mA/V A21: Section 2: Ia = 10.5 mA; gm = 1.9 mA/V A22: Section 1: Ia =10.0 mA; gm = 1.9 mA/V A22: Section 2: Ia = 10.0 mA; gm = 2.0 mA/V The specification for a new/100% emission valve is: Ia = 10 mA; gm = 2.2 mA/V As you can see, this result show a really strong matched pair of valves with good matching of each triode section within each envelope.
¥655.34

STC BRIMAR 6X4 UK MADE 1950's

On offer is an STC Brimar 6X4/U78 rectifier dating from the 1960s. It is unboxed and tests as 100% emission for each diode section within the envelope using our AVO VCM163.
¥200.97

STC BRIMAR 6X4 UK MADE 1950's

On offer today an STC Brimar 6X4 showing 100% emission for each diode section as tested using our AVO VCM163.
¥192.23