47
Primary use:
Type:
Polar patterns:
Common name: Western Electric 47
Production Status: Discontinued / Vintage
The 47 amplifier with the 394 cardioid capsule (1928) is one of the earliest condenser microphones together with the Neumann CMV3. It uses a 239A triode vacuum tube. It was aimed at public address, broadcast, cinema and studio recording applications.
Electrical Characteristics
Frequency Response
Hz - kHz
Output Sensitivity
mV/Pa
Max SPL
Max SPL, THD:
Self Noise (CCIR)
dB
Self Noise (DIN/IEC)
dB-A
Output Impedance
50/200Ω
Recommended Load
Powering
Proprietary unit
Supply Current
mA
Alternative Powering
Tube Model
239A
Tube Brand
Western Electric
Switchable Options
Pad
Filter/EQ
Physical Characteristics
Connector
6-pin
Connector notes
Available Colours
Black.
Weight
5443 g
Length
457.2 mm
Min diameter width
Max diameter
120.65 mm
Depth
Accessories
Included
Optional