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NOS 1950's Telefunken EF86 6267 DIAMOND Military BWB Bundesamt "DOME-TOP" TUBES
NOS 1950's Telefunken EF86 6267 DIAMOND Military BWB Bundesamt "DOME-TOP" TUBES
 
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Product Code: TFK-EF86
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Description
 
BID ONE (1) FOR AN AMPLITREX DIGITALLY TESTED NOS TELEFUNKEN SINGLE VALVE!
NOS OVP NIB MUSEUM CERTIFIED
NOS 1950's - 1960's TELEFUNKEN
TROPHY-PRINT QUALITY
Diamond "Gray Top-Hat" Telefunken
…"Actually a better sounding EF86 than the silver-cage EF86, the gray-electrostatic barrel outperforms it!"...
"BWB" MILITARY EAGLE
"DOME-TOP"
The TELEFUNKEN DOME-TOP TUBES WERE THE "OLDER BETTER" TELEFUNKEN TUBES, MADE IN THE 1950'S AND EARLY 1960'S.
THE BWB SOURCED THESE OLDER 1950'S TUBES in the early 1970's from Telefunken factory stock WITH THE DOME-TOP AND
RE-LABELLED THEM "BWB" and REPACKED THEM AFTER EXTENSIVE MILITARY TESTING.
Telefunken didn't make EF86 tubes in the 1970's as the Telefunken Factories had long ago shut their doors
These are BWB CERTIFIED for TOP specifications, not only meeting but EXCEEDING Telefunken's Data Sheet requirements.
THEY THEN labeled THE "BWB 448" GERMAN MILITARY DESIGNATION "EAGLE CREST" AND REPACKAGED THE BOXES IN 1970's.
TROPHY MUSEUM-QUALITY LETTERING!
Best Quality "BWB" Bundesamt für Wehrtechnik und Beschaffung Tungsram tubes.
Our are TUBE MUSEUM QUALITY NOS NIB plus they are BWB eagle insignia tubes, Bundesamt für Wehrtechnik und Beschaffung (German: Federal Office of Defense Technology and Procurement) in addition, tested on state-of-the-art Amplitrex AT1000 digital Tube Test System .
NOS TUBE MUSEUM QUALITY
6267=EF86 Telefunken West Germany
Very low noise clear, accurate, detailed, long life EF86 with "BWB" certification
The Neumann U67 tube microphone and the Vox AC15 amplifier are just a few applications for these tubes!
Did you know that theThe Neumann U47, U48, and U67 microphones were originally used by the BEATLES for their 1960's
concerts and recordings? Since many professional recording artists used the Neumann microphones in their studios
it was no surprise that they also demanded the same microphones for their live concerts!
The West German Telefunken "Gray-Plate" EF86 is the BEST choice for a PROFESSIONAL EF86 mic or amp application!
- Microtek Gefell UM92S
- Eastern Electric M520 amp
- VOX AC15
- Voc AC30 Heritage RI series
- 65amps' London 18-watt head
- 65amps' London Pro 18-watt head
- Blackstar Amps ART30H Artisan Series
- Soundelux U99- "Top-Hat" Supreme 16
- Dr Z Route 66 amp
- Matchless Clubman
- 3rd Power Amps Dream Solo 3
- Neumann U47, U48, U67
- Manley Baby Tube mic
- Matchless DC-30
- Lawson L47MP
- Microtek UM92.1S mic
- U67
- Blue Bottle
- U47
- Shindo Monbrison Phono preamp
- JADIS JP80MC preamp
E80CC NEW OLD STOCK BWB NEW IN BOX THE BEST!
PROFESSIONAL "BWB"
EF86 = 6267
Pentode
SINGLE VALVE TUBE
TELEFUNKEN EF86!
The older and until now non-existant NOS 1960's EF86 were finest Professional triode-pentode tubes Telefunken or any manufacturer ever made! BEST SOUNDING, BEST MADE and MOST VALUABLE and RARE out of ALL the EF86 Amp and Audio tubes.  You won't find other Extremely RARE Telefunken EF86 Amplitrex Tested tubes around - that's because they are kept and treasured by those who know which the BEST EF86 tubes are!
Amplitrex Computer Specifications from the actual tube
Would you feed yourself without knowing the ingredients? Of course not, so don't feed your preamp a tube not knowing the complete specifications! Here we have an excellent example of Telefunken's finest EF86 low-noise tube.  106% mA
TESTS BETTER THAN 111% of Hickok NOS
106% mA!
The most accurate "Fixed-Bias" test results are as follows:
YOU CHOOSE WHICH TUBE(S) YOU WANT:
tube 1: 3.5mA (116%) and 2.10mA/V (116%) (SOLD)
tube 2: 3.5mA (116%) and 2.10mA/V (116%) (SOLD)
tube 3: 3.4mA (115%) and 2.08mA/V (114%) (SOLD)
tube 4: 3.4mA (115%) and 2.08mA/V (114%) (available)
tube 5: 3.4mA (115%) and 2.18mA/V (114%) (available)
tube 6: 3.3mA (114%) and 2.14mA/V (110%) (available)
tube 7: 3.2mA (106%) and 2.00mA/V (111%) (available)
tube 8: 3.2mA (106%) and 2.00mA/V (111%) (available)
tube 9: 3.0mA (100%) and 1.90mA/V (105%) (available)
tube 10: 3.0mA (100%) and 1.90mA/V (105%) (available)
3.0mA + 1.80mA/V (Gm) = 100% Factory Data SpecificationActual tube was tested on the State-of-the-Art AMPLITREX AT-1000 Electron Tube Test System
CERTIFIED ULTRA-LOW-NOISE SPECIMEN
TubeMuseum tested tubes takes the guesswork out of the process of selection delivering you the best Audio tubes that there possibly can be.

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