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Double-Button Carbon Microphone (Works) Hula-Cow Style

Creation quality: 5.0/5 (1 vote)
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3D model description

This is the entire body assembly of a 1930s/1940s double-button carbon microphone (It CAN be used as a single-button mic as well)

NOTE: YOU WILL need to build the circuit for this mic! It requires a 9V battery, and power. Instructions/build here:

You will need to supply the carbon (crushed, strained, CONDUCTIVE*, carbon pellets for fish tanks works fine, so long as you get granules of consistent size), the screws for the terminals and to hold the mic together, and the diaphragm material.

Assembly tools: Screwdriver, soldering iron, hot glue gun, Ohmmeter or multitester.
Circuit components: 100K Resistor, 900 ohm resistors (x2). 10uF capacitors (x2), XLR plug, Wire.

This is an original design based off of the vintage mics. This one works well and has the hula-cow mascot from our studio on it.

There's another, more fiddly model that's a direct copy of the old mics, as well, but that's a different download.

3D printing settings

NO SUPPORTS. Print it flat, 221C, 13% infill, PLA or PLA+
Bed around 64C

3D printer file information

  • Design number: 1068859
  • 3D design format: STL Folder details Close
    • HulaCowDoubleButton.stl
    • SchemBoard.stl

    Learn more about the formats

  • Publication date: 2023-02-16 at 13:11


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