[Icom] SM-5 microphone schematic needed
OZ1EQC
[email protected]
Mon, 14 Oct 2002 14:27:49 +0200
Hi Keith
I have a SM5 equal to that of Pamela, is it possible to have a copy of your
schematics ?
Vy 73 Per OZ1EQC
IC-7400(IC-746Pro), IC-4KL 1 Kw QSK
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----- Original Message -----
From: "j. keith carter" <[email protected]>
To: <[email protected]>
Sent: Thursday, October 10, 2002 7:48 PM
Subject: Re: [Icom] SM-5 microphone schematic needed
> Hi Pamela; A good number of years back I discovered that the SM-5 Mic that
I
> had was not the one that was in my manual for the radio, and inasmuch as I
had
> added a linear with disaterous results from RF feedback, I sketched out
the PC
> board and generated a schematic. I have scanned it as a bitmap and if you
have
> not received one yet let me know and I will e-mail direct. It also shows
the
> bypassing that was necessary to keep the RF out. Can't remember where I
got
> the bypass info from but I think it may have been in QST. Regards and 73,
> Keith, VE3JKC. A ps, I also sketched the board with the other components
shown
> so I can scan that as well. JKC.
>
> Pamela wrote:
>
> > Hi,
> >
> > Sorry about the duplicate post if any, forgot to put the subject line
in.
> >
> > Does anyone have a data sheet / schematic for an SM-5 microphone that
has
> > the 3 transistor circuit?
> >
> > Any and all info greatly appreciated.
> >
> > 73, Pamela - N1ZKH
> >
> >
>
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