Film Industries Ltd. are perhaps best known for their M8 ribbon microphone, but what about models M1 to M7? Well, here is 14.286 % of the answer: the M5 moving coil microphone.
Film Industries M5 moving coil microphone
This model was likely to be a competitor to the Reslosound VMC, and like the Reslo, the M5 features a paper diaphragm driving a moving coil in a magnetic field. The output is wired to a pair of screw terminals, for easy wiring without the need for a custom connector. It does not have a separate ground connection.
The large black rubber cylinder at the base is supposed to give some vibration damping, although perhaps not enough to make a major difference.
Although a 30 ohm mic, this one at least has a strong output, due to the large strong magnets.
And here’s a somewhat wiggly frequency sweep of the mic:
A Film Industries mic arrived recently, along with a contemporary review from The Tape Recorder Magazine, by A. Tutchings. The level of technical detail the review goes into is impressive, testing sensitivity, proximity, frequency response and measuring impedance across the spectrum. Here it is…
In the days before XLR became the standard microphone connector, most manufacturers made their own custom connectors. The British companies Reslosound, Grampian, Cadenza and Film Industries all followed this practice.
I guess at the time it was a good idea and meant that the company could earn extra revenue for spares and replacements, but 40 or 50 years down the line it is becoming increasingly hard to find good quality connectors for these mics.
Here is a humble Film Industries mic that arrived without a connector. It was converted to XLR at the owners request. With a bit of care the new connector can be fitted without spoiling the look of the mic. Now it is good to go back into service. Better than being stuck in a box!