12-251 Microphone Kit

The 12-251 is one of two DIY tube microphone kits we make that are based on the Telefunken ElaM 251. It contains all the parts needed to build a phenomenal tube microphone that is suitable for a wide variety of sources, from vocals to drum kit to guitars, basses, and strings. We revised and improved the 12-251 circuit in January, 2022, to incorporate four upgraded capacitors, notably including the tube cathode capacitor. The board layout and build process were refined, along with the documentation. The 12-251 microphone kit includes: C12-style tube microphone body (in either of two finishes) Elastic shockmount, foam windscreen, 7-pin XLR cable Power supply (complete and US-tested) with 9-position polar pattern switch and US power cord Complete custom circuit kit, based on the ElaM 251: circuit boards, premium components, tube, transformer, best-in-class assembly instructions Our CK-12 style, edge-terminated large diaphragm capsule, called the RK-12 Custom flightcase with die-cut foam