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M31b; Beyerdynamic; (ID = 315511) Microphone/PU
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M31b; Beyerdynamic; (ID = 315511) Microphone/PU
Beyerdynamic;: M31b [Microphone/PU] ID = 315511 118x473
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For model M31b, Beyerdynamic; Heilbronn
Country:  Germany
Manufacturer / Brand:  Beyerdynamic; Heilbronn
Year: 1954–1956 Category: Microphone or Pick-up element
Wave bands - without
Power type and voltage No Power needed
Power out
from Model: M31b - Beyerdynamic; Heilbronn
Dimensions (WHD) 30 x 155 x 30 mm / 1.2 x 6.1 x 1.2 inch
Notes Bändchen-Mikrofon; Achtercharakteristik; 40-10000 Hz.
Im HdB d.Rdf-& Ferns-GrH 1954/55 ohne "b" geführt.
Net weight (2.2 lb = 1 kg) 0.4 kg / 0 lb 14.1 oz (0.881 lb)
Price in first year of sale 280.00 DM
Source of data HdB d.Rdf-& Ferns-GrH 1955/56

Model page created by Bernd P. Kieck. See "Data change" for further contributors.

All listed radios etc. from Beyerdynamic; Heilbronn
Here you find 145 models, 136 with images and 52 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.