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<DIV>Hi Sandy</DIV>
<DIV> </DIV>
<DIV>Before you go looking for a problem that may not exist:</DIV>
<DIV> </DIV>
<DIV>1. can you measure the output from your microphone that achieves full power
from your transmitter?</DIV>
<DIV> </DIV>
<DIV>2. Do you have access to another microphone or SB-10x rig to do a
comparison?</DIV>
<DIV> </DIV>
<DIV>I published a mod some years ago on my technical web site that increases
the Tx audio gain in my SB-101 but I do not suggest using that until you have
established that there is no fault in your microphone or Tx.</DIV>
<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 28/12/2015 00:54:15 GMT Standard Time, ac1wye@gmail.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>
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<DIV class=gmail_default
style="FONT-SIZE: large; FONT-FAMILY: comic sans ms,sans-serif; COLOR: rgb(0,0,255)">Hi,
Folks!<BR><BR></DIV>
<DIV class=gmail_default
style="FONT-SIZE: large; FONT-FAMILY: comic sans ms,sans-serif; COLOR: rgb(0,0,255)">My
SB-100 is working fine, with one little exception: to have any TX audio out, I
need to have the MIC/CW Level set virtually max. Checked the output waveform
on my SB-610 scope, and it appears clean. The tubes in the mic audio chain are
good, so I'm not certain what may be up. Seems as if the level should be
optimal around 50% or a little greater, but not maxed out.<BR><BR></DIV>
<DIV class=gmail_default
style="FONT-SIZE: large; FONT-FAMILY: comic sans ms,sans-serif; COLOR: rgb(0,0,255)">Anyone
have a suggestion where I might start looking?<BR><BR clear=all></DIV>
<DIV>
<DIV class=gmail_signature>
<DIV dir=ltr>
<DIV>
<DIV>
<DIV>
<DIV>
<DIV>
<DIV><SPAN style="FONT-FAMILY: comic sans ms,sans-serif"><FONT size=4><SPAN
style="COLOR: rgb(0,0,255)">
<DIV class=gmail_default
style="FONT-SIZE: large; FONT-FAMILY: comic sans ms,sans-serif; COLOR: rgb(0,0,255); DISPLAY: inline">73,</DIV><BR><BR></SPAN></FONT></SPAN></DIV><SPAN
style="FONT-FAMILY: comic sans ms,sans-serif"><FONT size=4><SPAN
style="COLOR: rgb(0,0,255)">
<DIV class=gmail_default
style="FONT-SIZE: large; FONT-FAMILY: comic sans ms,sans-serif; COLOR: rgb(0,0,255); DISPLAY: inline">Sandy
AC1Y</DIV><BR><BR>Alexander N. Gerli, Sr.<BR></SPAN></FONT></SPAN></DIV><SPAN
style="FONT-FAMILY: comic sans ms,sans-serif"><FONT size=4><SPAN
style="COLOR: rgb(0,0,255)">548 Allred Mill
Road<BR></SPAN></FONT></SPAN></DIV><SPAN
style="FONT-FAMILY: comic sans ms,sans-serif"><FONT size=4><SPAN
style="COLOR: rgb(0,0,255)">Mount Airy, NC
27030-2202<BR><BR></SPAN></FONT></SPAN></DIV><SPAN
style="FONT-FAMILY: comic sans ms,sans-serif"><FONT size=4><SPAN
style="COLOR: rgb(0,0,255)">Scotsmen walk about 900 miles each
year.<BR></SPAN></FONT></SPAN></DIV><SPAN
style="FONT-FAMILY: comic sans ms,sans-serif"><FONT size=4><SPAN
style="COLOR: rgb(0,0,255)">A Scotsman drinks around 45 gallons of Whisky a
year.<BR></SPAN></FONT></SPAN></DIV><FONT size=4><FONT size=4><FONT
size=4><FONT size=4><FONT size=4><FONT size=4><FONT size=4><FONT size=4><FONT
size=4><FONT size=4><FONT size=4><FONT size=4><SPAN
style="FONT-FAMILY: comic sans ms,sans-serif"><SPAN
style="COLOR: rgb(0,0,255)">Scotsmen get about 20 Miles Per
Gallon.</SPAN></SPAN><BR></FONT></FONT></FONT></FONT></FONT></FONT></FONT></FONT></FONT></FONT></FONT></FONT></DIV></DIV></DIV></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>