computerlen
Member
- Joined
- Nov 30, 2019
- Messages
- 7
For weeks I have been searching for a wiring diagram so that I could build a circuit powered from the phantom power from my mixer but none of the 48 volts gets to the dynamic or ribbon mic. I have come up with the perfect 4-transistor circuit. The low level from my Shure SM7 is boosted by more than 20db which is enough so that there is no need to increase the gain control of my mixer and therefore not increase the noise level. It uses 4 fet transistors and 3 resistors and 2 caps. Really easy to build.