<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div><span></span></div><div class="qtdSeparateBR" id="yui_3_16_0_1_1456241461726_6369" dir="ltr">I had that problem back in the 70's when I used the rig a lot and it was one of the final tubes , there was </div><div class="qtdSeparateBR" id="yui_3_16_0_1_1456241461726_6391" dir="ltr">Grid leakage and I got new tubes from Heath as my HW-101 was still under warranty and it fixed it , I was</div><div class="qtdSeparateBR" id="yui_3_16_0_1_1456241461726_6402" dir="ltr">a Novice then and on CW a lot. <br> Ray WB0HHM<br></div><div class="yahoo_quoted" id="yui_3_16_0_1_1456241461726_6354" style="display: block;"> <div id="yui_3_16_0_1_1456241461726_6353" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_1_1456241461726_6352" style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div id="yui_3_16_0_1_1456241461726_6351" dir="ltr"> <font id="yui_3_16_0_1_1456241461726_6356" face="Arial" size="2"> <hr size="1" id="yui_3_16_0_1_1456241461726_6357"> <b><span style="font-weight: bold;">From:</span></b> G3OOU--- via Heath <heath@puck.nether.net><br> <b><span style="font-weight: bold;">To:</span></b> mymodecw-hamitup@yahoo.com; heath@puck.nether.net <br> <b><span style="font-weight: bold;">Sent:</span></b> Tuesday, February 23, 2016 2:32 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [Heath] SB-102 Idling plate current<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1456241461726_6403"><br><div id="yiv8226363555"><div id="yui_3_16_0_1_1456241461726_6414"><font id="yiv8226363555role_document" color="#000000" face="Arial" size="2">
</font><div>Hi Joe</div>
<div> </div>
<div id="yui_3_16_0_1_1456241461726_6413">Apart from the possibility that the final tubes have a problem does
anything else change, for example the negative bias voltage or screen/anode
supplies? Are the finals stable and correctly neutralised?</div>
<div> </div>
<div id="yui_3_16_0_1_1456241461726_6415">Any resistors/pots around the finals that are misbehaving or out of
tolerance?</div>
<div> </div>
<div id="yui_3_16_0_1_1456241461726_6416"><font face="Arial" size="2" family="SANSSERIF">73<br clear="none"></font><font color="#0000ff" face="Arial" size="4" family="SANSSERIF"><i><br clear="none">Bob</i></font><i><font color="#000000" face="Arial" size="2" family="SANSSERIF"></font></i><br clear="none">Bob F Burns G3OOU,
G-QRP 6907, @BobFBurns<br clear="none">Crystal Palace Radio & Electronics Club: <a href="http://www.g3oou.co.uk/" target="_blank" rel="nofollow" shape="rect">http://www.g3oou.co.uk/</a><br clear="none">Technical web site: <a href="http://www.qsl.net/g3oou" target="_blank" rel="nofollow" shape="rect">http://www.qsl.net/g3oou</a><div id="yui_3_16_0_1_1456241461726_6417"> </div>
<div id="yui_3_16_0_1_1456241461726_6419">
<div id="yui_3_16_0_1_1456241461726_6418">In a message dated 23/02/2016 03:36:14 GMT Standard Time,
heath@puck.nether.net writes:</div>
<blockquote style="padding-left: 5px; margin-left: 5px; border-left-color: blue; border-left-width: 2px; border-left-style: solid;"><font color="#000000" face="Arial" size="2" style="background-color: transparent;">
</font><div class="yiv8226363555yqt3935420952" id="yiv8226363555yqt16754"><div style="color: rgb(0, 0, 0); font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);">
<div id="yiv8226363555yui_3_16_0_1_1456192607019_2340" dir="ltr">Hello fellow Hams, Name is
Joe, call WA3CKA, builder of my SB-102 in 1972, updated 3 years ago in use
everyday.</div>
<div id="yiv8226363555yui_3_16_0_1_1456192607019_2458" dir="ltr"><br clear="none"></div>
<div id="yiv8226363555yui_3_16_0_1_1456192607019_2396" dir="ltr">I find that the idling plate
current rises above the 50 ma setting as I transmit in a normal length CW QSO
maybe 5 minutes. <br clear="none"></div>
<div id="yiv8226363555yui_3_16_0_1_1456192607019_2457" dir="ltr"><br clear="none"></div>
<div id="yiv8226363555yui_3_16_0_1_1456192607019_2438" dir="ltr">Final tubes were new old stock
now 3 years old. Any suggestions as what may be causing this
condition.</div>
<div id="yiv8226363555yui_3_16_0_1_1456192607019_2456" dir="ltr"><br clear="none"></div>
<div id="yiv8226363555yui_3_16_0_1_1456192607019_2455" dir="ltr">You can speak to me in
technical terms if you want as I am a retired electronics tech. So far I
find nothing wrong.</div>
<div id="yiv8226363555yui_3_16_0_1_1456192607019_2502" dir="ltr"><br clear="none"></div>
<div id="yiv8226363555yui_3_16_0_1_1456192607019_2530" dir="ltr">I only do CW. 73 to
all.</div>
<div id="yiv8226363555yui_3_16_0_1_1456192607019_2531" dir="ltr"><br clear="none"></div>
<div id="yiv8226363555yui_3_16_0_1_1456192607019_2532" dir="ltr">Joe WA3CKA<br clear="none"></div>
<div id="yiv8226363555yui_3_16_0_1_1456192607019_2454" dir="ltr"><br clear="none"></div>
<div id="yiv8226363555yui_3_16_0_1_1456192607019_2453" dir="ltr"><br clear="none"></div></div></div><br clear="none"><br clear="none">_______________________________________________<br clear="none">Heath
mailing
list<br clear="none">Heath@puck.nether.net<br clear="none">https://puck.nether.net/mailman/listinfo/heath<br clear="none"></blockquote></div></div></div></div><br><div class="yqt3935420952" id="yqt04472">_______________________________________________<br clear="none">Heath mailing list<br clear="none"><a href="mailto:Heath@puck.nether.net" shape="rect" ymailto="mailto:Heath@puck.nether.net">Heath@puck.nether.net</a><br clear="none"><a href="https://puck.nether.net/mailman/listinfo/heath" target="_blank" shape="rect">https://puck.nether.net/mailman/listinfo/heath</a><br clear="none"></div><br><br></div> </div> </div> </div></div></body></html>