Join our mailing list!




  Home > Preamplifier Tubes >

NOS SIEMENS EC92 6AB4 for NEUMANN UM57 UM92 Bundeswehr
NOS SIEMENS EC92 6AB4 for NEUMANN UM57 UM92 Bundeswehr


 
Alternative Views:


$88.00


Availability:: Currently Unavailable
Product Code: SH_EC92BWB
Qty:

Description
 
CERTIFIED ULTRA-LOW-NOISE SPECIMEN  NOS TUBE MUSEUM QUALITY SIEMENS Bundeswehr "BWB" FALCON EC92/6AB4

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. Some tubes may not have the BWB insignia, subject to availability.

Share your knowledge of this product with other customers... Be the first to write a review

Browse for more products in the same category as this item:

Preamplifier Tubes
Microphone Tubes