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<DIV>Hi Guy</DIV>
<DIV> </DIV>
<DIV>I would check the frequency of the LMO output with a frequency counter
before doing anything else. It should tune from 5.5 - 5MHz plus a small overlap
i.e. it tunes from high to low when the SB101 tunes from low to high.</DIV>
<DIV> </DIV>
<DIV><FONT lang=0 size=2 face=Arial FAMILY="SANSSERIF" PTSIZE="10">73<BR></FONT><FONT lang=0 color=#0000ff size=4 face=Arial FAMILY="SANSSERIF" PTSIZE="14"><I><BR>Bob</FONT><FONT lang=0 color=#000000 size=2 face=Arial FAMILY="SANSSERIF" PTSIZE="10"></I><BR>Bob F Burns G3OOU,
G-QRP 6907, @BobFBurns<BR>Crystal Palace Radio & Electronics Club: <A href="http://www.g3oou.co.uk/">www.g3oou.co.uk</A><BR>Technical web site: <A href="http://www.qsl.net/g3oou">www.qsl.net/g3oou
<DIV> </DIV>
<DIV>
<DIV>In a message dated 13/03/2016 18:26:02 GMT Standard Time, gggdds@js-net.com
writes:</DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><FONT style="BACKGROUND-COLOR: transparent" color=#000000 size=2 face=Arial><BR><BR>Glen, and any other members of the Heathkit
listserve,<BR><BR>I think I have a problem, and it's not in Houston....I got
the 80 band tuned up on my SB-101, so I thought I'd try it on the air..I found
an 80 meter LSB group of hams talking ,and having tuned up the 101' into a
dummy load, I turned it onto the antenna and called...they came right back and
said I had a nice signal...no tuner...I asked "what frequency are you
showing?" and he came back "3900khz". Only one problem...I was
tuned to 3691khz!! I checked this again on 40 meters...same thing...when
I transmit a signal using my Elecraft K2 on 7400khz, the 101' is reading (and
receiving) it on 7181khz...Did I do something wrong with the LMO? I
checked it's range of movement,and with the tuning unit dialed all the way
counterclockwise, the variable cap is almost closed; then, five turns to
the right and the cap is fully opened, as I recall. I didn't check it on
any other bands, but at the moment, it would seem the LMO's output is 219khz
too low....right? It's reading 219khz low exactly on both bands.....
Help....<BR><BR>A bit of history. I know virtually nothing about the
history of this 101'....I bought this one, with another 101' and two HP23
series power supplies from a nearby ham for $100. He had bought them
from another ham, hoping to get one working one out of the pair. He
never had time to delve into either of them....<BR><BR>Guy<BR>WA6OQQ,<BR>On of
the hams at Heath<BR><IMG SRC="cid:X.MA1.1457908156@aol.com" border=0 DATASIZE="117949" ID="MA1.1457908156" ><BR><BR>
<DIV class=moz-cite-prefix>On 2/1/2016 1:40 PM, Glen Zook wrote:<BR></DIV>
<BLOCKQUOTE cite=mid:271297575.41400.1454362821505.JavaMail.yahoo@mail.yahoo.com type="cite">
<DIV style="FONT-SIZE: 16px; FONT-FAMILY: HelveticaNeue-Light, Helvetica Neue Light, Helvetica
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<DIV id=yui_3_16_0_1_1454362217059_5243><SPAN id=yui_3_16_0_1_1454362217059_5267>The LMO can be removed without removing
the front panel. You do have to loosen the setscrew on the dial
assembly, unsolder the wires to the LMO, and remove the 4-nuts on the
underside of the chassis.</SPAN></DIV>
<DIV id=yui_3_16_0_1_1454362217059_5243><SPAN><BR></SPAN></DIV>
<DIV id=yui_3_16_0_1_1454362217059_5243><SPAN id=yui_3_16_0_1_1454362217059_5302>Remove the main tuning knob and loosen
the large nut on the panel that holds the shaft. Move the shaft so
that the slip drive is removed from the dial. Then, lift the LMO from
the chassis and away from the dial.</SPAN></DIV>
<DIV id=yui_3_16_0_1_1454362217059_5243><SPAN><BR></SPAN></DIV>
<DIV id=yui_3_16_0_1_1454362217059_5243><SPAN>After making the repairs, put
the LMO back in place and reverse the directions.</SPAN></DIV>
<DIV id=yui_3_16_0_1_1454362217059_5242> </DIV>
<DIV id=yui_3_16_0_1_1454362217059_5245 class=signature>Glen,
K9STH </DIV>
<DIV id=yui_3_16_0_1_1454362217059_5245 class=signature><BR></DIV>
<DIV id=yui_3_16_0_1_1454362217059_5245 class=signature>Website: </A><A title=http://k9sth.net/ class=moz-txt-link-freetext href="http://k9sth.net/">http://k9sth.net</A><A href="http://www.qsl.net/g3oou"></DIV><BR>
<DIV id=yui_3_16_0_1_1454362217059_5241 class=qtdSeparateBR><BR><BR></DIV>
<DIV id=yui_3_16_0_1_1454362217059_5220 class=yahoo_quoted style="DISPLAY: block">
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<B id=yui_3_16_0_1_1454362217059_5375><SPAN id=yui_3_16_0_1_1454362217059_5374 style="FONT-WEIGHT: bold">From:</SPAN></B> Guy Giacopuzzi </A><A title=mailto:gggdds@js-net.com class=moz-txt-link-rfc2396E href="mailto:gggdds@js-net.com"><gggdds@js-net.com></A><A href="http://www.qsl.net/g3oou"><BR><B id=yui_3_16_0_1_1454362217059_5215><SPAN id=yui_3_16_0_1_1454362217059_5214 style="FONT-WEIGHT: bold">To:</SPAN></B> Glen Zook </A><A title=mailto:gzook@yahoo.com class=moz-txt-link-rfc2396E href="mailto:gzook@yahoo.com"><gzook@yahoo.com></A><A href="http://www.qsl.net/g3oou"> <BR><B id=yui_3_16_0_1_1454362217059_5222><SPAN id=yui_3_16_0_1_1454362217059_5221 style="FONT-WEIGHT: bold">Sent:</SPAN></B> Monday, February 1, 2016 2:22
PM<BR><B id=yui_3_16_0_1_1454362217059_5224><SPAN id=yui_3_16_0_1_1454362217059_5223 style="FONT-WEIGHT: bold">Subject:</SPAN></B> Re: LMO
rebuilding....<BR></FONT></DIV>
<DIV id=yui_3_16_0_1_1454362217059_5226 class=y_msg_container><BR>
<DIV id=yiv7636162275>
<DIV id=yui_3_16_0_1_1454362217059_5225>Glen,<BR clear=none>Thanks for your
help....I followed some of your advice, and the advice that I didn't follow
came back to bite me.....I acquired a couple of SB-101's for a song (well, a
song plus $100, but it included two power supplies....)....and I've been
"bringing the 1st one 'back'" so to say....cleaning, checking, going thru
the tune up routine, etc......I rebuilt the LMO on an SB-101....removed the
front panel, etc to get to it...had to do a lot of general cleaning as the
entire dial assy was all gummed up. I took apart and cleaned the
LMO...lubed it, removed and cleaned the stops, but<I> I didn't do the braid
thing</I>......I used a high end light oil for the lube...from Kroil....I
got it on the air last night, loaded it into a 75 ft long wire w/ no tuner
and joined a group at about 3800kc or so but they kept reporting I was
"jumping all over the place"...as I listened, I heard them, but the
frequency kept changing...or "warbling" as you say. My signal was plenty
powerful, and the group was spread out all over the California coast up past
San Francisco...so the 6146B's were really kicking, so to say. So, I
reread your email and this time, downloaded the file on LMO
rebuilding. I'm going to attempt removal of the LMO w/o removing the
front panel--can I do that? Maybe I'll have to remove the
"escutcheon" to set the dial on right...Anyway, now I think I've got
to do the braid....I was going to use a bit of "soldering" or maybe I should
say "de-soldering" braid...Is that ok? Anyway, I should have
followed <I>all</I> of your advice, not just some of it. One other
interesting thing....when I tuned in the stations, my RF gain control didn't
work, and when I looked at it, the diode on the middle terminal had let
go...but wow, did the receiver<I> have a lot of gain</I>. When I
hooked it back up, the gain seemed to back down a bit. I thought I'd
play with that just a bit to see if the control is somehow hurting the
overall receiver gain...<BR clear=none></DIV></DIV></DIV></DIV></DIV></DIV></DIV></BLOCKQUOTE><BR>
<DIV class=moz-signature>--
<BR><BR></DIV><BR><BR>_______________________________________________<BR>Heath
mailing
list<BR>Heath@puck.nether.net<BR>https://puck.nether.net/mailman/listinfo/heath<BR></FONT></BLOCKQUOTE></DIV></A></FONT></DIV></FONT></BODY></HTML>