[NJARC] Parts Request

[Jim Whartenby]

Steve
Sounds like a fun project.
Since you are planning to restripe, a base coat of the correct color is
just one more step in the process.  I can supply all of the resistors
and even select for the values you specify.  But when you solder them
into the circuit, that value will change.  This is just one of the many
minor problems with carbon composition resistors.
Let me know off list what you decide.
Jim

--- "Stephen F. Goulart" <sfgvoip at optonline.net> wrote:

> Visit our web site - See http://www.njarc.org
> _______________________________________________
> Jim,
> These were originally 10% but I would expect to find most of them
> have
> drifted in value (therefore the restriping). They would have dated to
> the
> mid 40's and are shaped and sized about like current composition
> resistors,
> unlike the end and solids of the 30's. I'm hoping for someone to have
> a can
> of these for me to pick through.
> 
> In a display the bottom cover would be off and a mirror mounted below
> to
> allow a view of the inside. Harry set up a 1930's radio for us in the
> museum
> this way as the "visible radio" and it's a nice effect.
> 
> Since Hewlett of HP was at Camp Evans this would be one of two
> displays
> honoring the founders of current companies. The other is Howard
> Vollum; the
> technical one of the Tektronix founders and another Camp Evans
> alumni.
> Incidentally I also am looking for a rebuildable Tek 511 (not 511A or
> 511AD).
> 
> Also does anyone have an HP524 series counter they could part with?
> 
> Steve
> 
> -----Original Message-----
> From: njarc-bounces at mailman.qth.net
> [mailto:njarc-bounces at mailman.qth.net]On Behalf Of Jim Whartenby
> Sent: Wednesday, January 02, 2008 11:49 PM
> To: New Jersey Antique Radio Club
> Subject: Re: [NJARC] Parts Request
> 
> 
> Visit our web site - See http://www.njarc.org
> _______________________________________________
> Steve
> I am curious, why use "old style" resistors?  If the oscillator will
> be
> a working exhibit, won't the covers be on it?
> 
> Then there is the issue of the old style resistors having plus &
> minus
> 20% tolerances.
> 
> Sadly, having late last year sorted through my entire resistor and
> capacitor repair stock, I most likely tossed into the trash exactly
> what you are looking for.  The few that I bothered to check were so
> far
> out of tolerance that all went into the circular file.
> 
> In fact, the NOS body, end and dot solid carbon resistors that
> remained
> from this sorting; I gave them away at the last NJARC meet.  Then
> there
> was the 30 or so pounds of NOS electrolytic aluminum can capacitors.
> What didn't sell at the meet, I gave to JR for the club to use.
> If I had only known....
> Jim
> 
> --- "Stephen F. Goulart" <sfgvoip at optonline.net> wrote:
> 
> > Visit our web site - See http://www.njarc.org
> > _______________________________________________
> >
> > Hi,
> > I am trying to rebuild an HP-200B  audio oscillator  (the Fantasia
> > model) for our Bill Hewlett memorial at InfoAge. I am looking for
> > some
> > NOS old style, one and two watt resistors.
> >
> > The bodies of the resistors are light colored rather than brown and
> > the
> > values follow the old sequence (i.e.500k versus 470K). I need
> actual
> > ohmmeter values for these. I will repaint the stripes as necessary.
> >
> > Thanks,
> > Steve
> >
> > One watt
> >
> > 500
> > 3K
> > 5K
> > 10K	2
> > 50K	3
> > 100K
> > 500K	2
> >
> > Two watt
> > 25K
> > 100K
> >
> >
> > _______________________________________________
> > NJARC mailing list
> > NJARC at mailman.qth.net
> > http://mailman.qth.net/mailman/listinfo/njarc
> >
> 
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