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Yaesu MH-31 Electret Condenser Mic Modification – M0UKD – Amateur Radio Blog
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Simple mic mod for the Yaesu FT-817 MH-31 microphone with A/B comparison (more talkpower) - YouTube
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More talkpower for the FT-817: a very simple microphone modification | Ham Radio Soul
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FT817 Mike Mod à la M0UKD – Dhakajack
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Dynamikkompressor für FT-817/818 (Komplettbausatz)
Yaesu FT-817 (FT 817 FT817) user and service manual, modifications | Radio, Ham radio, Modification
Yaesu FT-817 (FT 817 FT817) user and service manual, modifications
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BX-184 – An MH-31 microphone integrated voice keyer | DH8BQA
DH8BQA voice keyer BX-184 for FT-817, FT857D, FT-897D mic MH-31 – G1YBB.uk
How adapt a PC mic to Yaesu FT 857 897 817 - Resource Detail - The DXZone.com
Yaesu FT817 / FT817ND Full TX Modification - YouTube
The KA7OEI FT-817 pages - Customizing the FT-817
