Re: mike cable question

The image didn't make it, Ken.

On Fri, Jul 19, 2019 at 11:27 AM Ken Winterling [email protected] [FT100] <
[email protected]> wrote:

>
>
> Patricia,
>
> Here is the adapter cable diagram along with the EV docs and Yaesu FT-100
> mic pinout jack I think this will work; let me know if it doesn't. If you
> make changes please let me know so I can update/correct the diagram for my
> files.
>
> GL!
>
> [image: EV 664 Mic To Yaesu FT-100 Radio.jpg]
>
> [image: image.png]
>
> Ken
> WA2LBI
>
> On Fri, Jul 19, 2019 at 12:53 PM [email protected] <[email protected]>
> wrote:
>
> > Patricia,
> >
> > I think I can help although I don't have a FT-100 but I have repaired a
> > few some years ago. Double check the radio mic jack. I believe it is a
> > RJ-12 6 pin not a RJ-45 8 pin so you couldn't use an Ethernet cable. If
> it
> > is 6 pins then a 3 line telephone cable could be used to make an adapter.
> > If you have, or know somebody who has, a RJ crimper you can build the
> > cable yourself.
> >
> > If possible, I prefer to build adapters vs rewiring a working mic unless
> > I'm certain I'll never use it on another rig. As for the EV-664, it has a
> > 4 pin socket on the bottom so you can make a unique cable for the mic.
> >
> > As it comes from the factory the mic switch is used to short the mic for
> > on/off use. You need to rewire the switch for PTT as well as VOX, if you
> > plan to use the latter. It is also necessary to wire it for lo-z.
> >
> > The FT-100 needs a resistor, I forget the value, in series with the PTT
> > line to ground to key the transmitter. That can go in the mic or cable
> > connector. I prefer the latter so that removing the cable from the mic
> > removes the modification.
> >
> > Regarding shielding, I would use a 3 conductor shielded cable: shield/PTT
> > ground, mic hi, and PTT. Since the FT-100 has a common ground for mic and
> > PTT you don't need more.
> >
> > I'll work on a schematic. I should be able to send it to you today. I'll
> > include the official EV docs for wiring the mic for PTT and VOX. Its a
> > good idea to use the factory "standard" if you somebody else has to
> > troubleshoot the mic/cable in the future.
> >
> > *Ken *
> > *WA2LBI *
> > *LG G6 *
> >
> >
> > ------ Original message------
> > *From: *Patricia Wilson [email protected] <[email protected]>
> > [FT100]
> > *Date: *Thu, Jul 18, 2019 19:46
> > *To: *FT100@yahoogroups com;
> > *Cc: *
> > *Subject:*[FT100] mike cable question
> >
> >
> >
> > I was going through my collection of stuff and found a beautiful old
> > ElectroVoice 664 that I used with my SB400 Heathkit. It would add some
> much
> > needed charm to the operating desk. Question is what can I use for a mike
> > cable. My thinking is I can whack off one end of an ethernet cable and
> > connect the mike to the cable. Will it work? Would shielding be an issue?
> > Thanks for any feedback (no pun intended, honest).
> >
> > --
> >
> > Patricia Wilson
> > Apache Junction, AZ
> > Member NRA, ARRL
> > WB8DXX (Extra)
> >
> >
> >
>
> [Non-text portions of this message have been removed]
>
> 
>


-- 

Patricia Wilson
Apache Junction, AZ
Member NRA, ARRL
WB8DXX (Extra)