Is there an agreed-on way to wire a PTT mike to a "stereo" 3-conductor 1/4"
phone plug/jack? Based on past experience (KWM-2, NCX-3), I'd say it is:

Sleeve (ground) -- common to mic audio and PTT switch
Tip (end) -- PTT switch, close switch to trip TX relay and transmit
Ring (middle of shaft) -- mic audio hot

However, I found a nice Shure PTT mike that's got the common ground to Ring,
mic audio to Sleeve, and PTT to Tip. Should I rewire this beast, or is this
really the "standard"? Hard to imagine audio hot going to Sleeve, but who
knows?

Hope to reach a conscnsus before I repair the wires on my D-104, one of which
has broekn off. Thnx es 73, Mike K.

Oscar loves trash, but hates Spam! Delete him to reply to me.

ground to Ring, mic audio to Sleeve, and PTT to Tip
Sounds like somebody screwed up good, Check the cartridge it now may be
blown.
-Joe

"Mike Knudsen" wrote in message
Is there an agreed-on way to wire a PTT mike to a "stereo" 3-conductor
1/4"
phone plug/jack? Based on past experience (KWM-2, NCX-3), I'd say it is:

Sleeve (ground) -- common to mic audio and PTT switch
Tip (end) -- PTT switch, close switch to trip TX relay and transmit
Ring (middle of shaft) -- mic audio hot

However, I found a nice Shure PTT mike that's got the common ground to
Ring,
mic audio to Sleeve, and PTT to Tip. Should I rewire this beast, or is
this
really the "standard"? Hard to imagine audio hot going to Sleeve, but who
knows?

Hope to reach a conscnsus before I repair the wires on my D-104, one of
which
has broekn off. Thnx es 73, Mike K.

Oscar loves trash, but hates Spam! Delete him to reply to me.

From your description, the two microphone leads are correctly connected =
(one to the ring and the other to the sleeve), but ground is connected =
to the wrong lead. In my opinion that is just a mistake.

I presume that the microphone cable is shielded. Looking at the jack, if =
the braid is connected to the ring, then the mistake is surely on the =
jack wiring. If the braid is connected to the sleeve, then the mistake =
is presumably on the internal microphone wiring.

Verifying whether PTT works on not would be another element to determine =
where the error actually is.

73

Tony, I0JX

"Mike Knudsen" ha scritto nel messaggio =
...
Is there an agreed-on way to wire a PTT mike to a "stereo" 3-conductor =
1/4"
phone plug/jack? Based on past experience (KWM-2, NCX-3), I'd say it =
is:
=20
Sleeve (ground) -- common to mic audio and PTT switch
Tip (end) -- PTT switch, close switch to trip TX relay and transmit
Ring (middle of shaft) -- mic audio hot
=20
However, I found a nice Shure PTT mike that's got the common ground to =
Ring,
mic audio to Sleeve, and PTT to Tip. Should I rewire this beast, or =
is this
really the "standard"? Hard to imagine audio hot going to Sleeve, but =
who
knows?
=20
Hope to reach a conscnsus before I repair the wires on my D-104, one =
of which
has broekn off. Thnx es 73, Mike K.
=20
Oscar loves trash, but hates Spam! Delete him to reply to me.

In article , "Antonio Vernucci"
writes:

From your description, the two microphone leads are correctly connected =
(one to the ring and the other to the sleeve), but ground is connected =
to the wrong lead. In my opinion that is just a mistake.

Yes. What it had was the audio shield and one PTT lead connected to the ring.
I moved those to the sleeve, put the hot audio on the ring, and left theother
PTT lead on the tip.

I presume that the microphone cable is shielded. Looking at the jack, if =
the braid is connected to the ring, then the mistake is surely on the =
jack wiring. If the braid is connected to the sleeve, then the mistake =
is presumably on the internal microphone wiring.

Yep, it was miswired at the plug (jack), not at the mic end.

Verifying whether PTT works on not would be another element to determine =
where the error actually is.

And now the PTT works fine in my Viking II, which a previous owner had added
PTT to. The audio also works hum-free, both in the Viking and the HX-50.

Now to figure how to get the HX-50 PTT to work by grounding one terminal --
appears not to want to work that way.
Tnx es 73 -- Mike K.
Oscar loves trash, but hates Spam! Delete him to reply to me.