[Heathkit] SB-610 solid state conversion

[Donald Spoon]

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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