the value of old test and repair equipment

Sun Aug 7 02:57:07 CDT 2016

"> Though I have some background in Telcom, I'd never heard of the HP
3370(B)
> so had to check it out.  Here are a couple of take-away quotes from a
> thread at: http://www.vintage-radio.net/forum/showthread.php?p=866814

Did you also notice that one of the contributors to that thread goes
by the username of 'tonyduell'? That's where mine came from :-)"

Not sure how I missed that, Tony, but yes - you're second from the top.

On Sun, Aug 7, 2016 at 1:01 AM, dwight <dkelvey at hotmail.com> wrote:

> It must be a IT-28. It has a 500V leakage check.
>
> It is not a high precision device but it will be useful.
>
> I do have a precision LRC bridge made by Marconi
>
> that I can use for those purposes. It has a quick
>
> check type large range scales. It is more useful for
>
> quick checking.
>
> My main issue right now is to glue a broken
>
> switch wafer. I tried some super glue but it didn't
>
> hold. I'm going to try JB weld next.
>
> Dwight
>
>
> ________________________________
> From: cctalk <cctalk-bounces at classiccmp.org> on behalf of drlegendre . <
> drlegendre at gmail.com>
> Sent: Friday, August 5, 2016 9:55:27 PM
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re: the value of old test and repair equipment
>
> "I've been restoring a HeathKit capacitor checker."
>
> Which one, the IT-28? Those are really handy for finding leakage in
> high-voltage caps, as they have a crazy-high (like 600V ?) power supply.
> Unlike modern SS units, the IT-28 can test at practical working voltages.
>
> There's data out there on how to finely calibrate those units, but I don't
> see much point in it.. It's a lot of fiddly work and for what - to have the
> best 40-year-old LCR meter? If you want a better than ballpark measure of L
> or C, get one of the cheap uC-based swiss knife testers. A set of 1% metal
> film resistors are cheap, though, and will improve stability.
>
> If you ever feel the need to do semi-precision work with a device like the
> IT-28, you're best off running it as a comparator and keeping a set of
> precision value caps for reference. In that case, you only need to make
> sure you have well matched resistor pairs in the bridge circuit.
>
> On Fri, Aug 5, 2016 at 10:47 PM, dwight <dkelvey at hotmail.com> wrote:
>
> > I've been restoring a HeathKit capacitor checker.
> >
> > I also have a couple HP counters with Nixies.
> >
> > I even have a 10 channel printer ( need to repair the
> >
> > roller ). I've found that one doesn't need the expensive
> >
> > ink roller ( though I'd love to have one, used or not ).
> >
> > I use the two layer impact paper.
> >
> > Dwight
> >
> >
> > ________________________________
> > From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Ian S. King <
> > isking at uw.edu>
> > Sent: Sunday, July 31, 2016 3:46:13 PM
> > To: General Discussion: On-Topic and Off-Topic Posts
> > Subject: Re: the value of old test and repair equipment
> >
> > I really like my old test gear and yes, it just seems right to be
> restoring
> > vintage computers with vintage instruments.  HP scopes, logic analyzers,
> > DVMs; function generator; Tek scope, frequency counter; as well as just
> > 'sundry'.  But I did break down and buy a DDS frequency generator to work
> > on my VHF/UHF ham gear.
> >
> > On Sat, Jul 30, 2016 at 6:07 PM, drlegendre . <drlegendre at gmail.com>
> > wrote:
> >
> > > In fact, the value of old test gear varies tremendously..
> > >
> > > Vacuum tube testers of certain makes & models are near the top of the
> > food
> > > chain, with clean, working examples pulling $1500+ (USD) on a very
> > regular
> > > basis.
> > >
> > > There's also a strong following for much 'classic' audio analysis gear
> > (HD
> > > meters, ID meters, spectrum analyzers, etc.) some very fine
> multi-meters
> > > and anything really hi-end like General Radio, Breull & Kejjr, HP, and
> so
> > > forth.
> > >
> > > Some very early examples from the 1910s to 30's also pull good value
> > simply
> > > for visual appeal. Much of this gear is resplendent with embossed,
> > enameled
> > > panels, sculpted Bakelite knobs, large meter movements and an overall
> Art
> > > Deco styling.
> > >
> > > Seen a nice Supreme Diagnometer recently? Or any of the 40s-70s era
> > English
> > > made tube testers, like the AVO? Hickok also made a series of bench
> VTVMs
> > > with massive chromed meters, designed to be large enough that they can
> be
> > > read from many feet away.. those are beautiful for display, and guess
> > what
> > > - they work great, too!
> > >
> > > On Thu, Jul 28, 2016 at 5:24 PM, Dale H. Cook <radiotest at juno.com>
> > wrote:
> > >
> > > > At 03:52 PM 7/28/2016, Electronics Plus wrote:
> > > >
> > > > >... does as-is old test and repair equip that won't be particularly
> > > cheap
> > > > have interest to you guys?
> > > >
> > > > It depends entirely on the make and model of equipment. I always
> have a
> > > > laundry list of stuff I am looking for - one of the reasons why I
> bring
> > > my
> > > > tablet to meets.
> > > >
> > > > Dale H. Cook, GR / HP Collector, Roanoke/Lynchburg, VA
> > > > http://plymouthcolony.net/starcity/radios/index.html
> > > >
> > > >
> > >
> >
> >
> >
> > --
> > Ian S. King, MSIS, MSCS, Ph.D. Candidate
> > The Information School <http://ischool.uw.edu>
> > Dissertation: "Why the Conversation Mattered: Constructing a
> Sociotechnical
> > Narrative Through a Design Lens
> >
> > Archivist, Voices From the Rwanda Tribunal <http://tribunalvoices.org>
> > Value Sensitive Design Research Lab <http://vsdesign.org>
> >
> > University of Washington
> >
> > There is an old Vulcan saying: "Only Nixon could go to China."
> >
>