<html><head></head><body><div style="color:#000; background-color:#fff; font-family:Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div dir="ltr"><span>Many of the older electrolytic capacitors had -50% / +80% tolerances. Modern electrolytic capacitors usually come in +/- 10% or +/- 20%. The +/- 20% capacitors are, generally, a little less expensive and work very well.</span></div><div dir="ltr"><span><br></span></div><div dir="ltr"><span><br></span></div><div dir="ltr"><span>One thing to look at is the temperature rating of the capacitor. A rating of 85-degrees C is very common but there are 105-degree C capacitors available that will, in most circuits, last quite a bit longer than the 85-degree C capacitors. The 105-degree capacitors are not much more expensive than the 85-degree ones and, I have run into situations where 105-degree capacitors were actually cheaper than the same value capacitor in 85-degree versions.</span></div><div dir="ltr" id="yui_3_16_0_1_1517504265433_8672"><span><br></span></div><div></div><div id="yui_3_16_0_1_1517504265433_8626"> </div><div class="signature" id="yui_3_16_0_1_1517504265433_8601">Glen, K9STH </div><div class="signature" id="yui_3_16_0_1_1517504265433_8601"><br></div><div class="signature" id="yui_3_16_0_1_1517504265433_8601">Website: http://k9sth.net</div><div class="qtdSeparateBR" id="yui_3_16_0_1_1517504265433_7907"><br><br></div><div class="yahoo_quoted" id="yui_3_16_0_1_1517504265433_7911" style="display: block;"> <div style="font-family: Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1517504265433_7910"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;" id="yui_3_16_0_1_1517504265433_7909"> <div dir="ltr" id="yui_3_16_0_1_1517504265433_7908"> <font size="2" face="Arial" id="yui_3_16_0_1_1517504265433_8646"> <hr size="1" id="yui_3_16_0_1_1517504265433_8645"> <b><span style="font-weight:bold;">From:</span></b> Kenneth G. Gordon <kgordon2006@frontier.com><br> <b><span style="font-weight: bold;">To:</span></b> Glen Zook <gzook@yahoo.com> <br><b><span style="font-weight: bold;">Cc:</span></b> "Heath@puck.nether.net" <Heath@puck.nether.net><br> <b><span style="font-weight: bold;">Sent:</span></b> Thursday, February 1, 2018 10:22 AM<br> <b><span style="font-weight: bold;">Subject:</span></b> Re: [Heath] Replacement Caps<br> </font> </div> <div class="y_msg_container" id="yui_3_16_0_1_1517504265433_8649"><br><div dir="ltr" id="yui_3_16_0_1_1517504265433_8650"><br clear="none">Furthermore, with regard to electrolytics, as I remember it the tolerances on those was <br clear="none">something like -20% +100%, so I've never particularly worried about using an "exact" <br clear="none">replacement value for those.<br clear="none"><br clear="none"></div></div> </div> </div> </div></div></body></html>