Yaesu MD-100A8X details: * Transducer Type: Dynamic. * Frequency Response: 100 to 5000Hz (-6dB) * Audio Characteristic Controls. * DX Engineering Yaesu MD-100 Desk Microphone - Radioworld UK
The original schematic reveals that Yaesu cleverly engineered the base with two output sockets linked in parallel: a and an RJ-45 8-pin modular connector . This allows the same microphone to link to various transceivers using interchangeable cables.
| Source | Documentation Available | Key Details | | :--- | :--- | :--- | | | Official MD-100A8X Schematic (PDF) | A well-cataloged schematic diagram, filed under "Категории:" (Categories) | | Highfields ARC | Pinout Diagrams & Colour Codes | A clear, accessible wiring guide for both round and modular connectors | | manualslib.com | FT-600 Dealer's Manual (mentions MD-100) | The manual references the MD-100 A8X as an optional accessory | | manualzz.com | FT-2000 Documentation (mentions MD-100) | The FT-2000 documentation set lists the MD-100A8X as a key accessory | | Manual.ec / Manuals.ca | General Yaesu Manuals Library | A comprehensive library for various Yaesu products, where manuals can be found | Yaesu Md 100 Schematic
Radio 8-pin Pin 5 (+5V) -----> [Direct] ----> Electret Capsule (+) Pin 1 (GND) ---------------------> Electret Capsule (-) Pin 2 (MIC) <--------------------- [C2 1uF/50V] <--- Audio output Pin 3 (PTT) --[ Switch ]--------> GND (Pin 1) Pin 4 (UP) ---[ Switch ]--------> GND Pin 6 (DOWN) -[ Switch ]--------> GND
Avoid random "schematic download" websites that bundle malware. Stick to the three sources above. Yaesu MD-100A8X details: * Transducer Type: Dynamic
To see the internal circuitry and how the filter switches impact the audio signal: The Yaesu MD 100 desk microphone. Fred in the Shed YouTube• 17 Sept 2017 against the newer Yaesu M-100 dual-element model? YAESU- MD-100/100AX schematic.pdf - QSL.net
Requires a +5V supply (typically from Pin 2 of the radio's mic jack) to power the internal op-amps. 8-Pin Microphone Jack Pinout This allows the same microphone to link to
Can be viewed on DX Supply or the HSP Shop .