A different BM-800 PCB
A different BM-800 PCB
A Different BM-800 Printed Circuit Board
Monday, June 29, 2020
Jonas Jadeborn got a BM-800 with a slightly different printed circuit board from the ones I bought. It looks like this:
Jonas Jadeborn got a BM-800 with a slightly different printed circuit board from the ones I bought.
Fortunately, the circuit is the same as other BM-700 and BM-800 mics, and the pads at the top of the board are the same. So the electrolytic filter cap + goes to Pad 1 and -- to ground at Pad 2 or Pad 4. The small 20 to 30 pF cap goes from Pad 3 to Pad 5. Same as the other board.
Jonas found his mic was quiet without adding a resistor. So here are pictures of his modified mic fitted with a 25mm capsule and paint job.
-- +
Added cap.
Thank you, Jonas for the pictures. Hope you make some great recordings with your microphone.
Pad1 2 3 4 5
Pad 5 4 3 2 1