The Circuit Board is Used For Repairing and DIY The Neumann u87ai Microphone

DIY Neumann Replacement Badge Logo For u87ai Microphone

Studio Microphone Kit - U47 FET Topology - Professional PCB - DIY Audio

DIY Microphone Kit - OPA Alice-style Circuit with 80v power - Ultra Low Noise

PRICE CUT!! Microphone In The Style Of Neumann U87

Audio M7 Large Diaphragm Condenser Microphone Capsule 6 Micron DC48V 34mm

Gold-Plated PCB Full Kit For Neumann U87ai Microphone Repair & DIY

Vintage Wired Microphone 1/4” Plug w/ XLR Adapter On/Off Switch Untested