Marik
Pro Microphone Design
Doink,
The hardest part of the microphone is an output driver. It should have low output impedance and enough current capabilities to drive long cables. Yes, the circuit you reference to is very simple, but has serious compromises. First, the output impedance is very high at about 3 Kohm, so you won't be able to drive long cables, and connected to regular mic pre will result in serious degradation in bass response becase of impedance mismatch. Second, if you decide to do it anyway, I would suggest to make at least a "Linkwitz mod" so the capsule will have much better overload capabilities and better sound. If you go this way, here I would suggest to try Bob's idea you can find above about 'flipping' the capsule.
The hardest part of the microphone is an output driver. It should have low output impedance and enough current capabilities to drive long cables. Yes, the circuit you reference to is very simple, but has serious compromises. First, the output impedance is very high at about 3 Kohm, so you won't be able to drive long cables, and connected to regular mic pre will result in serious degradation in bass response becase of impedance mismatch. Second, if you decide to do it anyway, I would suggest to make at least a "Linkwitz mod" so the capsule will have much better overload capabilities and better sound. If you go this way, here I would suggest to try Bob's idea you can find above about 'flipping' the capsule.