<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman,new york,times,serif;font-size:12pt">Nope. <br><br><div>One of the joy's of good ol' point-to-point is it's simplicity. If I was going to update a unit, why wouldn't I just want to make a big jump instead of a little jump? I usually don't make the big jump but that is not necessarily a good thing. So just a little thinking outside the box. <br><br>73,<br>Bob, WA2CKY<br></div><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><br><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><font face="Tahoma" size="2"><hr size="1"><b><span style="font-weight: bold;">From:</span></b> Dave Cook <davec@netdave.com><br><b><span style="font-weight: bold;">To:</span></b> Robert Groh <rgroh@swbell.net>; Chris Kepus <ckepus@comcast.net>; jeffers.rj@xtra.co.nz;
heath@puck.nether.net<br><b><span style="font-weight: bold;">Sent:</span></b> Wed, November 2, 2011 9:54:53 PM<br><b><span style="font-weight: bold;">Subject:</span></b> RE: [Heath] SB-610 Monitor Scope<br></font><br><meta http-equiv="x-dns-prefetch-control" content="off"><style><!--
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--></style><div class="WordSection1"><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;">You’re joking, right?</span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;"> </span></p><div style="border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt;"><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in;"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"sans-serif";">From:</span></b><span style="font-size:10.0pt;font-family:"sans-serif";"> Robert Groh [mailto:rgroh@swbell.net] <br><b>Sent:</b> Wednesday, November 02, 2011 7:20 AM<br><b>To:</b> Chris Kepus; jeffers.rj@xtra.co.nz; heath@puck.nether.net<br><b>Cc:</b> Dave Cook<br><b>Subject:</b> Re: [Heath] SB-610 Monitor Scope</span></p></div></div><p class="MsoNormal"> </p><div><div><p class="MsoNormal">Missed
the beginning of this thread but the thought certainly occurs to me that one might be a lot better off just skipping the idea of keeping the CRT et al. If you want to keep the looks of the SB-610, just gut the SB-610 and then put one of the new small little notebook computers or eReader or what have you inside it for a display. Hook up some analog to digital converter blocks and write a little (?) bit of code and away you go. In fact, go color if you can and you can really get fancy.<br><br>73<br>Bob Groh, WA2CKY</p></div><div><p class="MsoNormal"> </p><div><div class="MsoNormal" style="text-align:center;" align="center"><span style="font-size:10.0pt;font-family:"sans-serif";"><hr align="center" size="1" width="100%"></span></div><p class="MsoNormal" style="margin-bottom:12.0pt;"><b><span style="font-size:10.0pt;font-family:"sans-serif";">From:</span></b><span
style="font-size:10.0pt;font-family:"sans-serif";"> Chris Kepus <<a rel="nofollow" ymailto="mailto:ckepus@comcast.net" target="_blank" href="mailto:ckepus@comcast.net">ckepus@comcast.net</a>><br><b>To:</b> <a rel="nofollow" ymailto="mailto:jeffers.rj@xtra.co.nz" target="_blank" href="mailto:jeffers.rj@xtra.co.nz">jeffers.rj@xtra.co.nz</a>; <a rel="nofollow" ymailto="mailto:heath@puck.nether.net" target="_blank" href="mailto:heath@puck.nether.net">heath@puck.nether.net</a><br><b>Cc:</b> Dave Cook <<a rel="nofollow" ymailto="mailto:davec@netdave.com" target="_blank" href="mailto:davec@netdave.com">davec@netdave.com</a>><br><b>Sent:</b> Tue, November 1, 2011 11:12:31 PM<br><b>Subject:</b> Re: [Heath] SB-610 Monitor Scope</span></p><div><p class="MsoPlainText">Bob,</p><p class="MsoPlainText"> </p><p class="MsoPlainText">There is an effort by Dave Cook, WA0TTN, to covert the SB-610 to solid state. That may or may not be what
you’re looking for but here is some info for your review.</p><p class="MsoPlainText"> </p><p class="MsoPlainText">He sent an update on his efforts to me in July but I haven’t seen any posts from him since. Since I am directly copying him in on this message, maybe he will let us know how things are going. </p><p class="MsoPlainText"> </p><p class="MsoPlainText">Here is what Dave said in April in his first summary to this list:</p><p class="MsoPlainText">********************************************************</p><p class="MsoPlainText">-----Original Message-----<br>From: <a rel="nofollow" ymailto="mailto:heathkit-bounces@mailman.qth.net" target="_blank" href="mailto:heathkit-bounces@mailman.qth.net">heathkit-bounces@mailman.qth.net</a> <a rel="nofollow" ymailto="mailto:[mailto:heathkit-bounces@mailman.qth.net]" target="_blank" href="mailto:[mailto:heathkit-bounces@mailman.qth.net]">[mailto:heathkit-bounces@mailman.qth.net]</a> On
Behalf Of Dave Cook<br>Sent: Thursday, April 07, 2011 7:26 PM<br>To: 'Heathkit List Server'<br>Subject: Re: [Heathkit] SB-610 solid state conversion</p><p class="MsoPlainText"> </p><p class="MsoPlainText"> </p><p class="MsoPlainText">Well first of all, I thank you all for the overwhelming response to my query. What a great group! I think I got the answers I was looking for, and then some. Here's a summary of the responses, both on the reflector and directly to me:</p><p class="MsoPlainText"> </p><p class="MsoPlainText">1. The general consensus is that converting my SB-610 to solid state is a reasonable idea.</p><p class="MsoPlainText">2. I took a look at the SB-614 and HO-5404 schematics. I didn't know these were solid state scopes. But I found they're both using all discrete transistors, c.a. mid-1980's and the circuits seem a bit elaborate when compared with the simplicity of op-amps circuits. Still, I got some good general ideas of how
the early inexpensive transistorized scopes were designed.</p><p class="MsoPlainText">3. I got my parts order for this project from Mouser today. The HV transistors I'm using for this project are only $0.20 apiece and the wideband low-noise dual op-amps are $0.60 apiece. Kind of difficult to justify buying a junked SB-614 to salvage the circuit board when these parts are so cheap.</p><p class="MsoPlainText">4. Several of you expressed interest in collaborating on this. I'll contact you directly, offline.</p><p class="MsoPlainText">5. I'll most definitely post my results to the group after my first prototype is completed. It might even be worth a QST article.</p><p class="MsoPlainText"> </p><p class="MsoPlainText">Thanks again for all of your opinions and suggestions.</p><p class="MsoPlainText"> </p><p class="MsoPlainText">73, Dave WA0TTN</p><p class="MsoPlainText">**********************************************************************</p><p
class="MsoPlainText"> </p><p class="MsoPlainText">Chris</p><p class="MsoPlainText">W7JPG</p><p class="MsoPlainText"> </p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;"> </span></p><p class="MsoNormal"><span style="font-size:11.0pt;font-family:"sans-serif";color:#1F497D;"> </span></p><div><div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in;"><p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"sans-serif";">From:</span></b><span style="font-size:10.0pt;font-family:"sans-serif";"> <a rel="nofollow" ymailto="mailto:heath-bounces@puck.nether.net" target="_blank" href="mailto:heath-bounces@puck.nether.net">heath-bounces@puck.nether.net</a> <a rel="nofollow" ymailto="mailto:[mailto:heath-bounces@puck.nether.net]" target="_blank"
href="mailto:[mailto:heath-bounces@puck.nether.net]">[mailto:heath-bounces@puck.nether.net]</a> <b>On Behalf Of </b><a rel="nofollow" ymailto="mailto:jeffers.rj@xtra.co.nz" target="_blank" href="mailto:jeffers.rj@xtra.co.nz">jeffers.rj@xtra.co.nz</a><br><b>Sent:</b> Friday, October 28, 2011 7:57 PM<br><b>To:</b> <a rel="nofollow" ymailto="mailto:heath@puck.nether.net" target="_blank" href="mailto:heath@puck.nether.net">heath@puck.nether.net</a><br><b>Subject:</b> [Heath] SB-610 Monitor Scope</span></p></div></div><p class="MsoNormal"> </p><div><p class="MsoNormal">Has anyone re-built a Heathkit SB-610 Monitor Scope and used a PC Board rather than point to point wiring.</p></div><div><p class="MsoNormal">I also have an HO-10 that needs to be re-built and would prefer to use a PC Board rather than point to point wiring.</p></div><div><p class="MsoNormal">Bob ZL2AAQ.</p></div></div></div></div></div></div></div><meta
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