iFutniew Diaphragm Baby Bottle Condenser Microphone Recording Microphone DIY Production Repair Modified Circuit Board with Plug

1. The bias voltage board can be applied to other triode front-mounted printed circuit boards, suitable for DIY use by friends with strong manual skills, friends who have no practical ability, please buy our front panel + polarizing plate 2.60V single output, +-60V dual output, +60V dual input, +60V and +120V dual output, can be according to the bias voltage of the large diaphragm, single output is suitable for single-layer, double-diaphragm microphones Output, suitable for dual-diaphragm microphone head 3. It is recommended to use +60V and +120V dual output versions. If you feel that the sound is not strong enough, and the sensitivity is not high enough under 60V voltage, you can switch 120, and then you can connect a switch