![]() Take a commercially available switch box intended for switching data lines such as printer cables between two computers, and change out the connectors so that it can be used to switch between two microphones to one transceiver. When I found that I had a need for this device, it seemed obvious that I would need to build it. ![]() I have seen several articles in several different amateur radio magazines on this idea over the years. The same concept is used, all of the mic lines are switched straight through and the 2 lines for the external speaker/headphone jacks are separate but switched simultaneously.Ī Microphone Selector Switch A Really Inexpensive Mic Selector Let me say right at the start, that I did not originate this idea. This selector can also be built using RJ-12 6 pin jacks and plugs for the Yaesu FT-7800, FT-7900, FT-8800, FT-8900, FTM-100 and FTM-400 series of radios. The selectors that I use here at my station have the hand mic jack in the front and the headset jacks are in the back because I have built extensions to bring the headset jacks out to the front in places on the operating desk that are more convenient for me. Third, I have moved (most of the time) the RJ-45 female jacks to the front of the selector box rather than the back. Second, the cable connecting the external speaker jack on the radio to the selector is now built in to the selector and does not require a separate jack. First I have eliminated the separate PTT jack as the headset adapters that I build and indeed most commercial headsets have the PTT built into the cable to the radio. You will note some changes in the circuit as built in this version and indeed in all of the recent versions. You will need at least a 15 pin Data Switch to handle all 10 lines but they are very common. There is not much to the conversion technically, just a lot of tedious soldering and the creating of new openings to fit the RJ-45's and the holes for the external speaker and earphone jacks. They can still be found at hamfests and computer shows if one looks for them. The basis for the selector is a Data Switch, now pretty obsolete since the development of USB. On the 706 series of radios, which includes the IC-7000, all of the connections can be made at the back of the radio so no extra cables show in the front. If one uses a headset for operating as Net Control but a hand mic for rag-chewing, the change is made with a flip of a knob rather than plugging and unplugging fragile cables. All 8 wires from the female RJ-45 jacks are switched and the two lines for the external speaker/headphones jacks are switched simultaneously on a different set of contacts. Originally designed for the IC-706 (all variants) and 703, it can also be used for any radio that uses an RJ-45 connector for the mic input like the Yaesu FT-857, FT-897, FT-817 etc. If not using the LED, no power is needed.Įvery pedal is hand built and bench tested prior to shipping.This is a new picture of the latest mic selector using the circuit above. A standard 9v, negative tip power supply powers the LED. Since the standard order is for a momentary push to talk switch that doesn't need a LED because it's only engaged while you hold down the switch, a LED and DC jack are now optional and available by request (+ $5). This switch can be built with either a latching or momentary (push to talk) switch, and also a heavy duty toggle switch, just specify when ordering.īuilt using high-quality Switchcraft XLR jacks and a pro footswitch rated for 16,000 cycles- for years of trouble-free use. This switch will not work with a condenser mic, dynamic mics only. And don't worry about loud pops in the audio signal, you won't hear any noises when engaging the foot switch. PLEASE ALLOW 5-7 BUSINESS DAYS FOR NEW ORDERS TO SHIPīuilt for the stage or studio, our deluxe mic mute gives you the ability to silently mute your mic signal, hands free.
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