[Heathkit] SB-610 solid state conversion

[Dave Cook]

Thanks Don!

Yes, QST has the rights to the article information at this point, but if
they don't publish it I will post article on my web site and let you all
know. But for now, I just wanted to thank everyone who commented on the
questions I was asking and to give you all a peek at the photo album for the
project.

73, Dave WA0TTN

> -----Original Message-----
> From: heathkit-bounces at mailman.qth.net [mailto:heathkit-
> bounces at mailman.qth.net] On Behalf Of Donald Spoon
> Sent: Monday, May 07, 2012 9:04 PM
> To: Dave Cook; Heathkit
> Subject: Re: [Heathkit] SB-610 solid state conversion
> 
> Outstanding work!  Congrats!
> 
> I missed your initial inquiry, so the pics were a VERY pleasant
> surprise.   I am short on any details you might have included in your
> original post.  I am curious about the PCB source, as I am unfamiliar with
Jon
> Stanley... probably an gross fault on my part!  Anything you care to share
would
> be appreciated, but I quite understand your commitments to QST at this
point.
> I can wait...
> 
> Cheers,
> -Don Spoon-
> K0APK
> 
> 
> On 5/7/2012 8:55 PM, Dave Cook wrote:
> > Well guys, it's been a long time since I posted this original request
> > for opinions, and the project is finally completed. I just submitted
> > my article to QST today and I hope it makes the cut for publication.
> > My thanks to everyone for your feedback and support. The photo album
> > still needs some editing and doesn't show the exact completed version,
> > but it's enough to share for now and I'll clean it up between now and
> > when the article is
> > (hopefully) published.
> >
> >
> >
> > https://picasaweb.google.com/wa0ttn/SolidStateScopeConversion#
> >
> >
> >
> > Thanks for all the feedback on my original posting and I hope you
> > folks enjoy the results.
> >
> >
> >
> > 73, Dave WA0TTN
> >
> >
> >
> > From: Dave Cook [mailto:wa0ttn at netdave.com]
> > Sent: Wednesday, April 06, 2011 9:12 PM
> > To: Heathkit List Server (heathkit at mailman.qth.net)
> > Subject: SB-610 solid state conversion
> >
> >
> >
> > Hi Group,
> >
> >
> >
> > I'm about to rip the guts out of a SB-610 scope and convert it to a
> > solid state device. First of all, yes I know this is blasphemy, but I
> > have a couple of these spares that I've picked up on eBay pretty
> > cheap. Secondly, it's hard to find the compactron tubes these guys
> > use. And thirdly, rather than replacing all the ancient out of
> > tolerance carbon composition resistors and leaking capacitors, it
> > seems to make more sense to just build a new scope around the existing
HV
> power supply and CRT.
> >
> >
> >
> > So, my question is, has anyone on the list done one of these
> > conversions before? I've found some excellent designs on the web using
> > HV transistors for the deflection plates, driven by wideband op-amps.
> > And of course the associated sawtooth and two-tone oscillator circuits
using
> op-amps as well.
> > I think I've got a good design in mind, so I'm only asking if anyone
> > has done this before, or seen such a rebuild project out on the web,
> > or is totally offended by the thought of my desecrating one of these
> > classic scopes?
> >
> >
> >
> > 73, Dave WA0TTN
> >
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