The D-M49 is a recreation of the Neumann M49 tube microphone. It comes in two versions, B and C: B is filament-biased, whereas C is the conventional self-bias type. Builder must furnish output transformer, enclosure, and capsule.

D-M49B/C Features:

• Two versions available, utilizing nearly all of the same components
• Employs a AC701K tube
• A 5840 tube may be substituted when wired as a triode
• Can employ K47, K49, or M7-type capsules
• Supports the AMI T49 output transformer
• PCB set includes microphone and power supply boards
• Two form factors available: round 60mm and rectangular 44 x 48mm

Price:

• $49 CAD for PCB set

More Information:

• Product details at VintageMicrophonePCBKit.com
• View the GroupDIY build thread
• View the Mouser Electronics project file