Historic TubeMuseum, Tuxedo Park, New York Established in 1928 as a premier research facility in Tuxedo Park, New York, that attracted such brilliant and most visionary minds of the twentieth century - Albert Einstein, Werner Heisenberg, James Franck, Niels Bohr and Enrico Fermi to name a few. The Tuxedo Park lab attracted these top-flight scientists who experimented with audio, sound, time measurement, and radar waves. He turned this Tuxedo Park laboratory into a meeting place for the most visionary minds of the twentieth century; Albert Einstein, and the aforementioned scientists. Today this location is the home of The Tube Museum New York. ( featured on Wikipedia® )
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TUBEMUSEUM NEW YORK
Dear tubemuseumusa, The Siemens tube is working perfectly in my UM 92, and my mic is sounding beautiful! Thank you so much for working with me on this. - maddstylin
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shipped quickly, item as described. thanks | (SIEMENS EC92 6AB4 for NEUMANN GEFFEL UM57 UM92 1963) | Jul-18-08 11:03 |
CERTIFIED ULTRA-LOW-NOISE SPECIMEN
TUBE MUSEUM QUALITY
SIEMENS EC92 6AB4
BRANDED FOR "POPE"
PICTURES OF ACTUAL "SIEMENS & HALSKE MUNICH WEST GERMANY" EC92 SIEMENS TUBES - COMES IN BLUE & YELLOE BOXES!
MUNICH WEST GERMANY
1960's NOS EC92 = 6AB4
SIEMENS WAS CHOSEN AS PART OF THE ORIGINAL SUPPLIED TUBE COMPLEMENT (MIC NOT INCLUDED)
The 'Neumann' UM-57 is really a Gefell (East German) mic with a large M7 capsule and 3 patterns, selectable at the power supply. It was introduced in 1957, and was the first variable pattern mic to be introduced by Gefell. In many ways its appearance is similar to the UM 92 by Microtech Geffel. It is similar in concept to the M49 and C12A, in that the one diaphragm is connected to earth, the back-plate is connected to the input of the tube, and is at 60volt, and the second diaphragm is varied from 0 - 120volts from the power supply to give you the various patterns. Make sure you have the power supply as the pattern switching is on it, and not on the mic. It uses an Siemens Halske EC92 triode for the tube.
1960's SIEMENS HALSKE
EC92 TUBE
EXTREMELY Rare NOS SIEMENS HALSKE West Germany Old Production
RESTORE YOUR NEUMANN TO THE ORIGINAL SUPPLIED TUBE COMPLEMENT IT DESERVES!
Almost NEVER SEEN, These are the MOST SCARCE NOS of the 6AB4 for NEUMANN GEFFEL UM57 UM92
made in
Munich, Germany
Siemens Halske "Pope" brand:
Tube 1: 6,200 mA/V (111%) code VH1 ≠ 7K = 1967 (Available!)
availability effective 07/11/2020
with vintage SIEMENS ≠ codes!
the ≠ symbol identifies REAL SIEMENS WESTERN Germany
CERTIFIED ULTRA-LOW-NOISE SPECIMEN
CERTIFIED LOW-NOISE SPECIMENS
TESTS BETTER THAN 100% NOS
All Tubes Tested on Amplitrex AT1000 DIGITAL ELECTRON TUBE TEST SYSTEM
These are rare tubes in this Quality Tested electrical condition
CERTIFIED ULTRA-LOW-NOISE SPECIMENS
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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TUBEMUSEUM NEW YORK
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