Recently I got a Philips EL6021 mic:
It has the following specs:
Since the cable that came with it was unbalanced and noisy, making the mic rather useless, I decided to rewire the cable to make it balanced so I could connect it to my Mackie 24.8 mixer.
Some reverse engineering led to this diagram:
The connector can be fitted in each of three positions, giving the microphone 3 different impedances. See the side of the connector on the mic for the details.
It is absolutely noiseless now and it has a surprisingly good audio quality!
If you have any questions or remarks, please do not hesitate to ask me.