Philips capacitor microphone

Philips capacitor microphone

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Philips capacitor microphone (mini apple and biscuit style, valve). Single mic balance. Capsules rather variable and connector unreliable. Used with fixed equaliser. Has EF40 valve and 3-pin XLR connector - assumed that pin 1 = common, pin 2 = 6.3v DC (heater) and pin 3 = HT in and signal out (anode resistor in (missing) power supply). Outside of microphone is silver plated.

Philips omnidirectional valve capacitor microphone "much loved for orchestral balance".

Details

Category:
Television
Collection:
BBC Heritage Collection
Object Number:
2012-5118/407
Materials:
silver plated, metal (unknown) and electronic components
Measurements:
overall: 193 mm 40 mm, .22 kg
type:
microphone