Common name: Maihak B-V 30a
Production Status: Discontinued / Vintage
The B-V 30 is a bottle style tube condenser microphone closely realated to the Neumann CMV 3a and Telefunken E la MZ 028/1. The first version of the B-V 30 (radio designation B-M1-1) up to 1949 features a Telefunken RV2 P800 valve then with the release of the B-V 30a in 1950 a Hiller MSC 2 coupled with a Maihak output transformer. Capsules are interchangeable with omnidirectional cardioid and bidirectional polar pattern responses (version of the Neumann M5, M7, M8 and M9) as well a dual pattern capsule, The B-M15 switchable between cardioid and omnidirectional. These were manufactured by MWL (Hans Karl Freiherr von Willisen) for the NWDR (Nordwestdeutscher Rundfunk). Specifications refer to the cardioid capsule.