This is a de luxe microphone both in its styling and its sound quality. Although it is primarily intended to be used by soloists in orchestras and combos, it is also eminently suitable for use in all types of public address systems and musical installations.
Connecting cable The microphone can be connected to all types of amplifiers, both with high impedance (tube amplifiers without input transformer) and with low input impedance (transistor amplifiers).
The microphone is fitted with a 5-metre (17-foot) 4-core screened cable without plug. For connection to a high-impedance amplifier input, the microphone cable must be connected to the plug according to Figure 2a. The microphone impedance is then 25,000 ohms, and the cores of the cable are coded as follows: transparent = signal core; blue = return conductor. For connection to a low-impedance amplifier input, the cable must be connected according to Figure 2b. The microphone impedance is then 500 ohms, and the cores of the cable are coded: red = signal core; blue = return conductor.
Text and graphics are from Philips publication 3922 981 66291, November 1967.