<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px"><div id="yui_3_16_0_1_1490632681360_5453"><span></span></div><div class="qtdSeparateBR" id="yui_3_16_0_1_1490632681360_5452"><br><br></div> <div class="yahoo_quoted" id="yui_3_16_0_1_1490632681360_5449" style="display: block;"> <div style="font-family: Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 13px;" id="yui_3_16_0_1_1490632681360_5448"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1490632681360_5447"> <div dir="ltr" id="yui_3_16_0_1_1490632681360_5450"><font id="yui_3_16_0_1_1490632681360_5451" size="2" face="Arial"> On Sunday, March 26, 2017 10:54 PM, Joseph Smalley <mymodecw-hamitup@yahoo.com> wrote:<br></font></div> <br><br> <div class="y_msg_container" id="yui_3_16_0_1_1490632681360_5446"><div id="yiv9325265917"><div id="yui_3_16_0_1_1490632681360_5445"><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;" id="yui_3_16_0_1_1490632681360_5444"><div id="yiv9325265917yui_3_16_0_1_1490579132159_31711"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31733"><br id="yiv9325265917yui_3_16_0_1_1490579132159_31736" clear="none"></div><div id="yiv9325265917yui_3_16_0_1_1490579132159_31738"> Hello to the group. I still use my SB-102 that I built in 1972, I have two issues I want to fix.</div><div id="yiv9325265917yui_3_16_0_1_1490579132159_31740"><br id="yiv9325265917yui_3_16_0_1_1490579132159_31743" clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31745">Number ONE is the poor operation of the S-meter very rarely does the S-meter give a good reading</div><div id="yiv9325265917yui_3_16_0_1_1490579132159_31747"><br id="yiv9325265917yui_3_16_0_1_1490579132159_31750" clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31752">even on real strong signals. A fellow ham close by gets a pinned needle on my TS-530sp on the</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31754"><br id="yiv9325265917yui_3_16_0_1_1490579132159_31757" clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31759">Sb-102 it will be S9. Most stations I work have a loud signal but low reading on the S-meter. Never S9<br id="yiv9325265917yui_3_16_0_1_1490579132159_31762" clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31764"><br id="yiv9325265917yui_3_16_0_1_1490579132159_31767" clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31768"> I have put new 6AU6 I.F. amplifier tubes in the radio no help. Replaced the Product detector/AVC tube, no help</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31770"><br id="yiv9325265917yui_3_16_0_1_1490579132159_31773" clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31775">Any ideas will be appreciated.</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31777"><br id="yiv9325265917yui_3_16_0_1_1490579132159_31780" clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31782">Number TWO sometimes the resting (idling) plate current will increase above the set value of 50 MA, this happens</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31784"><br id="yiv9325265917yui_3_16_0_1_1490579132159_31787" clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31789">when I get long winded CW only here. <br id="yiv9325265917yui_3_16_0_1_1490579132159_31792" clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31794"><br id="yiv9325265917yui_3_16_0_1_1490579132159_31797" clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31799">I recently repaired a SB-100 for a friend that had an excessive plate current reading which turned out to be</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31801"><br id="yiv9325265917yui_3_16_0_1_1490579132159_31804" clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31806">the cathode resistors on the final amplifiers.This is not what I am experiencing. The reading was 3 ohms for the <br id="yiv9325265917yui_3_16_0_1_1490579132159_31809" clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31811"><br id="yiv9325265917yui_3_16_0_1_1490579132159_31814" clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31816">six 20 OHM resistors in parallel, when I replaced the resistors the reading went to 1.6 OHMS which I measured</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31818"><br id="yiv9325265917yui_3_16_0_1_1490579132159_31821" clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31823">on another properly working SB-102.</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31825"><br id="yiv9325265917yui_3_16_0_1_1490579132159_31828" clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31830">Any info will be appreciated.</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_31832"><br id="yiv9325265917yui_3_16_0_1_1490579132159_31835" clear="none"></div>73 Joe WA3CKA <div class="yiv9325265917qtdSeparateBR"><br clear="none"><br clear="none"></div><div class="yiv9325265917yahoo_quoted" style="display:block;" id="yui_3_16_0_1_1490632681360_5600"> <div style="font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;" id="yui_3_16_0_1_1490632681360_5599"> <div style="font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px;" id="yui_3_16_0_1_1490632681360_5598"> <div class="yiv9325265917yqt3593709739" id="yiv9325265917yqtfd52302"><div class="yiv9325265917y_msg_container" id="yui_3_16_0_1_1490632681360_5597"><br><div id="yiv9325265917"><div id="yui_3_16_0_1_1490632681360_5596"><div style="color:#000;background-color:#fff;font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:13px;" id="yui_3_16_0_1_1490632681360_5595"><div id="yiv9325265917yui_3_16_0_1_1490579132159_8818"> Hello to the group. I still use my SB-102 that I built in 1972, I have two issues I want to fix.</div><div id="yiv9325265917yui_3_16_0_1_1490579132159_9054"><br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9052">Number ONE is the poor operation of the S-meter very rarely does the S-meter give a good reading</div><div id="yiv9325265917yui_3_16_0_1_1490579132159_9056"><br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_8962">even on real strong signals. A fellow ham close by gets a pinned needle on my TS-530sp on the</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9058"><br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9051">Sb-102 it will be S9. Most stations I work have a loud signal but low reading on the S-meter. Never S9<br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9102"><br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9050"> I have put new 6AU6 I.F. amplifier tubes in the radio no help. Replaced the Product detector/AVC tube, no help</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9118"><br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9162">Any ideas will be appreciated.</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9163"><br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9164">Number TWO sometimes the resting (idling) plate current will increase above the set value of 50 MA, this happens</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9172"><br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9173">when I get long winded CW only here. <br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9188"><br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9189">I recently repaired a SB-100 for a friend that had an excessive plate current reading which turned out to be</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9240"><br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9241">the cathode resistors on the final amplifiers.This is not what I am experiencing. The reading was 3 ohms for the <br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9264"><br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9319">six 20 OHM resistors in parallel, when I replaced the resistors the reading went to 1.6 OHMS which I measured</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9320"><br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9321">on another properly working SB-102.</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9369"><br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9384">Any info will be appreciated.</div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9431"><br clear="none"></div><div dir="ltr" id="yiv9325265917yui_3_16_0_1_1490579132159_9432">73 Joe WA3CKA<br clear="none"></div></div></div></div><br clear="none"><br clear="none"></div> </div></div><div class="yiv9325265917yqt3593709739" id="yiv9325265917yqtfd05110"> </div></div><div class="yiv9325265917yqt3593709739" id="yiv9325265917yqtfd57593"> </div></div></div></div></div><br><br></div> </div> </div> </div></div></body></html>