Schematic ((hot)) | Yaesu Md 100

Note that the High Emphasis and Low Cut switches are disabled if your older radio doesn't provide voltage at the mic jack. 3. Common Troubleshooting & Mods

increases this to 300 Hz to improve clarity in noisy conditions. High Emphasis Switch Yaesu Md 100 Schematic

Below is a functionally equivalent schematic of the MD-100’s internal preamp board. Note that the High Emphasis and Low Cut