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[AMPS] TS-940 and SB-200

To: <amps@contesting.com>
Subject: [AMPS] TS-940 and SB-200
From: carlseye@tampabay.rr.com (carl seyersdahl)
Date: Wed, 28 Nov 2001 07:47:19 -0500
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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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<BODY bgColor=3D#ffffff>
<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 that??=20
if not, you'll need a "soft key" ckt. like the one from harbach =
electronics. I=20
have no connection with them except that's where I buy some =
parts!!!!!&nbsp;=20
that unit is about $ 18-20 and allows your exciter to see only about 1 =
volt or=20
so at very low current and is completely safe for any modern=20
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 when=20
  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). =
</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 =
SB-200</DIV>
    <DIV><BR></DIV>
    <DIV><FONT size=3D2>
    <DIV><FONT size=3D2>Having read everything I can find here and =
elsewhere about=20
    hooking up a TS-940 to a SB-200 I have decided to ask fo help.&nbsp; =
The=20
    remote output of the 940 uses pin 6 for ALC, pin 4 for the amp =
relay, and=20
    pin 2 as the ground.&nbsp; With this hookup I get no closure or =
voltage=20
    between pins 2 and 4.&nbsp; I do get closure between 4 and the =
outside of=20
    the din connector.&nbsp; When hooked up to the SB-200 there does not =
seem to=20
    be any keying (ie. no plate current).&nbsp; There is HV on the amp =
and=20
    everything else works on the 940.&nbsp; The amp was supposedly in =
working=20
    order when taken off-line years ago.&nbsp; Any suggestions as to =
where to=20
    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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