----- Original Message -----
Sent: Sunday, June 11, 2006 10:46
AM
Subject: [drakelist] T4X mic wiring
question
[EMAIL PROTECTED] made an
utterance to the drakelist gang
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As
usual, wiring for mic for my T4X is a mystery for me, I think I
have
the PTT
part wrong maybe.
First, I
have another mic, a Turner, wired up OK, I use it strictly
PTT,
not VOX
and it works fine.
I
recently got another mic from Ken, W8EK
> > > > Drake "banana" desk
microphone
> > > > This is the 2 piece desk
microphone that was used on the
> > > > TR-3 and TR-4 and the 4 line
twins. It has a separate stand, and
> > > > can be lifted out of the stand, or
left in it. These micro-
> > > > phones are high impedance, and
were made by ElectroVoice for
> > > > Drake. This one is labeled
EV 729 SR D on the microphone portion,
> > > > while the base is an EV
417.
My scope
shows it does have good output, better than my Turner
(with
built-in
amp) actually.
Having
trouble making the wiring happy.
T4X
manual sez: "connections to plug are: tip - push to talk
switch,
sleeve
is microphone, body is common for both".
When it
says "sleeve", I'm assuming that's the part wired between the
tip
and the
back / ground part of the plug (in the middle of the plug)
?
The
cable for the mic I got from Ken has white, red, black, and braid.
I
had
thought tip would be white, red would be body / back, black would
be
middle /
"sleeve".
Not
behaving correctly however.
How
should I have it ?
I seem
to remember something about making a choice between VOX and PTT.
Is
there
some way to be able to do either ? If I have to, I guess
my
preference is PTT.
I also
seem to remember that with one of the setups, when I go back to
CW
I have
to screw around with the VOX gain or something...
Thanks,
Chuck, K1OM
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