<html><body><div style="color:#000; background-color:#fff; font-family:verdana, helvetica, sans-serif;font-size:12pt"><div style="RIGHT: auto"><SPAN style="RIGHT: auto">Thanks, Morris. Actually, yes, I remember waiting on the CRT and the other tubes to warm up in the ol<VAR id=yui-ie-cursor></VAR>d B&W sets! LOL. I'd forgotten about that experience. Age here is 57. Guess it is time to bring out the old tube testor and start checking all the tubes before I start ordering stuff. Thanks again for the shock to the gray matter ~ reminding me about the "extended" wait time. :) Mike <BR style="RIGHT: auto" class=yui-cursor></SPAN></div>
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<DIV style="BORDER-BOTTOM: #ccc 1px solid; BORDER-LEFT: #ccc 1px solid; PADDING-BOTTOM: 0px; LINE-HEIGHT: 0; MARGIN: 5px 0px; PADDING-LEFT: 0px; PADDING-RIGHT: 0px; HEIGHT: 0px; FONT-SIZE: 0px; BORDER-TOP: #ccc 1px solid; BORDER-RIGHT: #ccc 1px solid; PADDING-TOP: 0px" class=hr contentEditable=false readonly="true"></DIV><B><SPAN style="FONT-WEIGHT: bold">From:</SPAN></B> Morris <mdilli@nnwifi.com><BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> 'K5MLC (Mike)' <k5mlc@sbcglobal.net><BR><B><SPAN style="FONT-WEIGHT: bold">Cc:</SPAN></B> w4gbw@bellsouth.net; cemilton@aol.com; heath@puck.nether.net<BR><B><SPAN style="FONT-WEIGHT: bold">Sent:</SPAN></B> Tuesday, July 12, 2011 5:28 PM<BR><B><SPAN style="FONT-WEIGHT: bold">Subject:</SPAN></B> RE: [Heath] HO 10 scope question (Update)<BR></FONT><BR>
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<DIV><B><SPAN class=yiv934621524843141322-12072011><FONT color=#0000ff>You must be too young to remember waiting on the defective CRT on the old black and white TV to warm up so we could see a picture. Sounds like the CRT is the problem with reduced emission or a cathode short. There was available a special filament voltage booster that sometimes extended the life of the old CRT but it was marginal in value IIRC.</FONT></SPAN></B></DIV>
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<div align=left><FONT size=2 face=Arial>Morris</FONT> </div>
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<DIV dir=ltr lang=en-us class=yiv934621524OutlookMessageHeader align=left><FONT size=2 face=Tahoma>-----Original Message-----<BR><B>From:</B> heath-bounces@puck.nether.net [mailto:heath-bounces@puck.nether.net] <B>On Behalf Of </B>K5MLC (Mike)<BR><B>Sent:</B> Tuesday, July 12, 2011 10:29 AM<BR><B>To:</B> cemilton@aol.com; w4gbw@bellsouth.net; heath@puck.nether.net<BR><B>Subject:</B> Re: [Heath] HO 10 scope question (Update)<BR><BR></FONT></DIV>
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<DIV><SPAN>Hello everyone,</SPAN></DIV>
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<DIV><SPAN>Thanks for all the great ideas! Here is an update on the HO 10 scope project: I opened her up and gave her a good look over, looking for obvious burned stuff, loose stuff, etc. I unplugged the tubes and did a visual on those, and returned them to their sockets. I measured the caps and resistors and found nothing "way out," although several of the hv resistors are higher in value and are on the "replace" list. I found nothing obviously damaged, so I plugged her in and switched her on, again watching for anything unusual. The tubes lit up. I waited, but no trace on the CRT. I decided to let her remain</SPAN><SPAN> on and "cook" a while ~ after 10-15 minutes - finally, here came a trace! I have repeated this scenario several times, and I have even put her in the "loop" and monitored my signal FB. </SPAN></DIV>
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<DIV><SPAN>So, any ideas about what to replace to eliminate the "wait" time? All the tubes are reasonably priced except the 6C10! That one is pricey! (On, and BTW, I do have the assembly manual and schematic.) </SPAN></DIV>
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<DIV><SPAN>Thanks for everyones assistance. </SPAN></DIV>
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<DIV><SPAN>Mike</SPAN></DIV>
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<DIV><SPAN>Chuck, Hayseed has a recap kit listed for an HR 10, but not the HO 10. But it looks like they would assemble one for me if I requested it. Thanks for the info. <VAR id=yiv934621524yui-ie-cursor></VAR></SPAN></DIV>
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<DIV><FONT face="Times New Roman, Times, serif"></FONT>Try <A href="http://www.hayseedhamfest.com/" rel=nofollow target=_blank>www.hayseedhamfest.com</A> They have a complete re-build kit for the scope. </DIV>
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<DIV>73</DIV>
<DIV>Chuck</DIV>
<DIV>W4MIL<BR><BR></DIV>
<DIV style="CLEAR: both">Remember, the government cannot give anything to anyone that they have<BR>not first taken away from someone else.<BR></DIV><BR><BR>
<DIV style="FONT-FAMILY: arial, helvetica; COLOR: black; FONT-SIZE: 10pt">-----Original Message-----<BR>From: Charles W. Morehouse <w4gbw@bellsouth.net><BR>To: K5MLC (Mike) <k5mlc@sbcglobal.net>; Heathkit <heath@puck.nether.net><BR>Sent: Tue, Jul 5, 2011 7:44 pm<BR>Subject: Re: [Heath] HO 10 scope question<BR><BR>
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<DIV><FONT size=2 face=Arial>Hi Mike,</FONT></DIV>
<DIV><FONT size=2 face=Arial>Yes, have restored a couple of them and others with the same circuit. Replace the HIV caps and all the resistors in the HV circuit.</FONT></DIV>
<DIV><FONT size=2 face=Arial>The electrolytics are unobtanium, but I cut off the base with a Dremmel tool and install new caps inside. Epoxy the can together.</FONT></DIV>
<DIV><FONT size=2 face=Arial>Works great and keeps the look original. Suspect the 1V2. Makes a great scope to monitor your stereo. Good luck.</FONT></DIV>
<DIV><FONT size=2 face=Arial>Wayne,</FONT></DIV>
<DIV><FONT size=2 face=Arial>W4GBW</FONT></DIV>
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<DIV>"Madam, we have given you a republic, if you can keep it." Ben Franklin</DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV style="FONT: 10pt arial; BACKGROUND: #e4e4e4"><B>From:</B> <A title=k5mlc@sbcglobal.net href="mailto:k5mlc@sbcglobal.net" rel=nofollow target=_blank ymailto="mailto:k5mlc@sbcglobal.net">K5MLC (Mike)</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=heath@puck.nether.net href="mailto:heath@puck.nether.net" rel=nofollow target=_blank ymailto="mailto:heath@puck.nether.net">Heathkit</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, July 05, 2011 4:14 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [Heath] HO 10 scope question</DIV>
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<DIV id=yiv934621524yui_3_2_0_4_130989628119437>Hello,</DIV>
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<DIV>After sitting unused for a while, my HO10 monitor scope appears to be dead. It was working FB before being shelved. As far as I know, it has never been recapped. Should I start there? Anyone have any other ideas/<VAR id=yiv934621524yui-ie-cursor></VAR>suggestions?? </DIV>
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<DIV>Thanks in advance.</DIV>
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<DIV>Mike K5MLC</DIV></DIV></DIV></DIV>
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