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[AMPS] TS-940 and SB-200

To: <amps@contesting.com>
Subject: [AMPS] TS-940 and SB-200
From: BarryS@core.com (Barry Schieferstein)
Date: Wed, 28 Nov 2001 10:03:42 -0500
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Carl,
Having read all of the other comments hear on this list I have already =
bought the mod from Harbach.  I did not want to get into that project =
until the main problem was solved.  From all of the comments I am =
receiving it seems that the relay circuit in the amp is the place to =
start looking.
Thanks,
Barry KW8W
  -----Original Message-----
  From: carl seyersdahl <carlseye@tampabay.rr.com>
  To: Mike <W4EF@dellroy.com>; Barry Schieferstein <BarryS@Core.Com>; =
amps@contesting.com <amps@contesting.com>
To: <amps@contesting.com>
  Date: Wednesday, November 28, 2001 7:48 AM
  Subject: Re: [AMPS] TS-940 and SB-200


  You also need to be aware of the high keying voltage from the sb200, =
It's about -120 volts dc. Can your exciter handle that?? if not, you'll =
need a "soft key" ckt. like the one from harbach electronics. I have no =
connection with them except that's where I buy some parts!!!!!  that =
unit is about $ 18-20 and allows your exciter to see only about 1 volt =
or so at very low current and is completely safe for any modern =
exciter!!
     carl / kz5cap.s. if pin 2 on your exciter is supposed to be ground =
it must be defective, since you can key with one wire on the shell of =
your connector!!!!
    ----- Original Message -----=20
    From: Mike=20
    To: Barry Schieferstein ; amps@contesting.com=20
    Sent: Tuesday, November 27, 2001 10:14 PM
    Subject: Re: [AMPS] TS-940 and SB-200


    Hi Barry,=20

    Try connecting a shorting plug to the relay control input on the =
SB-200. If the amp
    is working properly, you should hear the T/R relay close, and see an =
indication
    of idling current on the plate current meter when you connect the =
shorting plug. If=20
    nothing happens when you do this, then there is a problem in the =
amp. If the=20
    T/R relay closes, and you see idling current, then you can apply =
drive from the=20
    exciter to see if the amp works (make sure you remove the RF drive =
from the=20
    exciter before you unkey the amp).=20

    73 de Mike, W4EF................
      ----- Original Message -----=20
      From: Barry Schieferstein=20
      To: amps@contesting.com=20
      Sent: Tuesday, November 27, 2001 6:24 PM
      Subject: [AMPS] TS-940 and SB-200


      Having read everything I can find here and elsewhere about hooking =
up a TS-940 to a SB-200 I have decided to ask fo help.  The remote =
output of the 940 uses pin 6 for ALC, pin 4 for the amp relay, and pin 2 =
as the ground.  With this hookup I get no closure or voltage between =
pins 2 and 4.  I do get closure between 4 and the outside of the din =
connector.  When hooked up to the SB-200 there does not seem to be any =
keying (ie. no plate current).  There is HV on the amp and everything =
else works on the 940.  The amp was supposedly in working order when =
taken off-line years ago.  Any suggestions as to where to start looking?
      Thanks,
      Barry KW8W

      barrys@core.com

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<DIV><FONT size=3D2>Carl,</FONT></DIV>
<DIV><FONT size=3D2>Having read all of the other comments hear =
on&nbsp;this list I=20
have already bought the mod from Harbach.&nbsp; I did not want to get =
into that=20
project until the main problem was solved.&nbsp; From all of the =
comments I am=20
receiving it seems that the relay circuit in the amp is the place to =
start=20
looking.</FONT></DIV>
<DIV><FONT size=3D2>Thanks,</FONT></DIV>
<DIV><FONT size=3D2>Barry KW8W</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px =
solid; MARGIN-RIGHT: 0px">
  <DIV><FONT face=3DArial size=3D2><B>-----Original =
Message-----</B><BR><B>From:=20
  </B>carl seyersdahl &lt;<A=20
  =
href=3D"mailto:carlseye@tampabay.rr.com";>carlseye@tampabay.rr.com</A>&gt;=
<BR><B>To:=20
  </B>Mike &lt;<A =
href=3D"mailto:W4EF@dellroy.com";>W4EF@dellroy.com</A>&gt;; Barry=20
  Schieferstein &lt;<A =
href=3D"mailto:BarryS@Core.Com";>BarryS@Core.Com</A>&gt;; <A=20
  href=3D"mailto:amps@contesting.com";>amps@contesting.com</A> &lt;<A=20
  =
href=3D"mailto:amps@contesting.com";>amps@contesting.com</A>&gt;<BR><B>Dat=
e:=20
  </B>Wednesday, November 28, 2001 7:48 AM<BR><B>Subject: </B>Re: [AMPS] =
TS-940=20
  and SB-200<BR><BR></DIV></FONT>
  <DIV><FONT face=3DArial size=3D2>You also need to be aware of the high =
keying=20
  voltage from the sb200, It's about -120 volts dc. Can your exciter =
handle=20
  that?? if not, you'll need a "soft key" ckt. like the one from harbach =

  electronics. I have no connection with them except that's where I buy =
some=20
  parts!!!!!&nbsp; that unit is about $ 18-20 and allows your exciter to =
see=20
  only about 1 volt or so at very low current and is completely safe for =
any=20
  modern exciter!!</FONT></DIV>
  <DIV><FONT face=3DArial size=3D2>&nbsp;&nbsp; carl / kz5cap.s. if pin =
2 on your=20
  exciter is supposed to be ground it must be defective, since you can =
key with=20
  one wire on the shell of your connector!!!!</FONT></DIV>
  <BLOCKQUOTE dir=3Dltr=20
  style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
    <DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
    <DIV=20
    style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
    <A title=3DW4EF@dellroy.com =
href=3D"mailto:W4EF@dellroy.com";>Mike</A> </DIV>
    <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3DBarryS@Core.Com=20
    href=3D"mailto:BarryS@Core.Com";>Barry Schieferstein</A> ; <A=20
    title=3Damps@contesting.com=20
    href=3D"mailto:amps@contesting.com";>amps@contesting.com</A> </DIV>
    <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Tuesday, November 27, =
2001 10:14=20
    PM</DIV>
    <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: [AMPS] TS-940 =
and=20
    SB-200</DIV>
    <DIV><BR></DIV>
    <DIV>
    <DIV><FONT face=3DArial size=3D2>Hi Barry, </FONT></DIV>
    <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
    <DIV><FONT face=3DArial size=3D2>Try connecting a shorting plug to =
the relay=20
    control input on the SB-200. If the amp</FONT></DIV>
    <DIV><FONT face=3DArial size=3D2>is working properly, you should =
hear the T/R=20
    relay close, and see an indication</FONT></DIV>
    <DIV><FONT face=3DArial size=3D2>of idling current on the plate =
current meter=20
    when you connect the shorting plug. If </FONT></DIV>
    <DIV><FONT face=3DArial size=3D2>nothing happens when you do this, =
</FONT><FONT=20
    face=3DArial size=3D2>then there is a problem&nbsp;in the amp. If =
the=20
    </FONT></DIV>
    <DIV><FONT face=3DArial size=3D2>T/R relay closes, and you see =
idling current,=20
    then you can apply drive from the </FONT></DIV>
    <DIV><FONT face=3DArial size=3D2>exciter to see if the amp works =
(make sure you=20
    remove the RF drive from the </FONT></DIV>
    <DIV><FONT face=3DArial size=3D2>exciter before you unkey the amp).=20
</FONT></DIV>
    <DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
    <DIV><FONT face=3DArial size=3D2>73 de Mike,=20
    W4EF................</FONT></DIV></DIV>
    <BLOCKQUOTE dir=3Dltr=20
    style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
      <DIV style=3D"FONT: 10pt arial">----- Original Message ----- =
</DIV>
      <DIV=20
      style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
      <A title=3DBarryS@Core.Com href=3D"mailto:BarryS@Core.Com";>Barry=20
      Schieferstein</A> </DIV>
      <DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Damps@contesting.com=20
      href=3D"mailto:amps@contesting.com";>amps@contesting.com</A> </DIV>
      <DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Tuesday, November 27, =
2001 6:24=20
      PM</DIV>
      <DIV style=3D"FONT: 10pt arial"><B>Subject:</B> [AMPS] TS-940 and=20
      SB-200</DIV>
      <DIV><BR></DIV>
      <DIV><FONT size=3D2>
      <DIV><FONT size=3D2>Having read everything I can find here and =
elsewhere=20
      about hooking up a TS-940 to a SB-200 I have decided to ask fo =
help.&nbsp;=20
      The remote output of the 940 uses pin 6 for ALC, pin 4 for the amp =
relay,=20
      and pin 2 as the ground.&nbsp; With this hookup I get no closure =
or=20
      voltage between pins 2 and 4.&nbsp; I do get closure between 4 and =
the=20
      outside of the din connector.&nbsp; When hooked up to the SB-200 =
there=20
      does not seem to be any keying (ie. no plate current).&nbsp; There =
is HV=20
      on the amp and everything else works on the 940.&nbsp; The amp was =

      supposedly in working order when taken off-line years ago.&nbsp; =
Any=20
      suggestions as to where to start looking?</FONT></DIV>
      <DIV><FONT size=3D2>Thanks,</FONT></DIV>
      <DIV><FONT size=3D2>Barry KW8W</FONT></DIV>
      <DIV>&nbsp;</DIV>
      <DIV><A=20
      =
href=3D"mailto:barrys@core.com";>barrys@core.com</A></DIV></FONT></DIV></B=
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