[Boatanchors] HRO-500 Data Sought

[Peter A Markavage]

I thought Rick, WA1DEJ, way back then, also bought up a large volume
National HRO-500 parts. I also received a bunch of manuals, addendum's,
bulletins, etc. from Max Fuchs. Several of the service bulletins for the
early 500's were incorporated into later versions of the manuals.
Pete, wa2cwa
 
On Fri, 13 Feb 2009 16:50:03 -0800 (PST) "J. Forster" <jfor at quik.com>
writes:
> I think it might have been the guy who started Unidilla, Ralph 
> Gianni. He
> had a call K?FAA
> 
> FWIW,
> -John
> 
> 
> 
> 
> > Carl and others,
> >
> > Around (from dates in my database) mid 1993 someone I knew who at 
> the time
> > lived in MASS bought some or most or all of what was being hauled 
> out of
> > the
> > National factory building.  I don't recall the details of why it 
> was being
> > hauled
> > out at that time.  He re-sold most of the paper to me around 
> 11/11/93.  As
> > my
> > specialty is and has been for nearly half a century military 
> radio
> > manuals, I
> > didn't get much out of it that I actually wanted but didn't trash 
> any of
> > it.
> > Over the ensuing years, I've sold some of the original equipment 
> manuals,
> > in
> > some cases to include the final one which I don't normally do.
> >
> > On the HRO-500 specifically, I retained one Series 75 manual and 
> one that
> > has
> > printed on the back cover Series 122 but that someone has written 
> on the
> > front cover Series 88.  The latter one I scanned a number of years 
> ago and
> > can
> > print (I do have a stack of originals of the two foldouts Fig 50 
> and 51).
> > There
> > is also a stack of original sales sheets (one sheet, front and 
> rear).  And
> > from one to a stack of the following, mostly undated:
> >
> > ALTERNATE PROCEDURE FOR ALIGNING HRO-500 SYNTHESIZER.  5 pages.  I 
> don't
> > know
> > what it's an alternated to.
> >
> > Instructions for Disassembly and Reassembly of HRO-500 Main Tuning 
> Dial
> > and
> > Ball Drive Mechanism.  3 pages.
> >
> > INSTALLATION INSTRUCTIONS FOR TWO-SPEED HRO-500 PW DIAL.  2 pages
> >
> > ADDENDA TO THE HRO-500 SERIES 88.  4 pages (these changes seem to 
> be all
> > incorporated in the Series 122/88 manual I have).
> >
> > CSB 66-3 dtd June 9, 1966.  2 pages (apparently updates to earlier 
> models
> > including Series 75).  Signed by C. W. Huether.
> >
> > ASB 65-1 dtd June 15, 1965.  7 pages.  Also has info for NCX-5, 
> NCX-A and
> > NCX-D.  Printed but not signed, Harvey Whitmore.
> >
> > ASB 65-2 dtd September 22, 1965.  1 page.  Signed by Harvey 
> Whitmore.
> >
> > RECOMMENDED SPARE PARTS KIT FOR HRO-500.  2 pages.
> >
> > Finally, a 3-page copy of what appears to be a handdrawn and 
> lettered
> > checklist.  At the top of each page drawn in hollow letters is 
> "HRO-500".
> > It begins
> > with +12V, +11V, +10V, +8.5 AGC PNT, +7.5 BFO ENABLE...  That's 
> down the
> > left
> > side of the page.  The right side of the page mostly seems to show 
> what
> > you
> > should do or what you should read in order to put a check mark in 
> the
> > block.  I
> > don't think it is complete.  The bottom of Page 3 ends with CHECK 
> DIAL
> > EVERY
> > 10 KC.  The right side says READ f @ J5 plus some details.
> >
> >
> >
> > In a message dated 2/11/2009 12:49:27 PM Central Standard Time,
> > km1h at jeremy.mv.com writes:
> >> Id appreciate copies also, I believe I authored at least one of 
> them.
> >>
> >> My current 500 is a series 122 with LF-10, speaker and NIB rack 
> mounts.
> >> Sold a 75 series with all docs including production allignment 
> procedure
> >> around 88. Been wondering who has that alignment info stashed 
> away.
> >>
> >> Carl
> >> KM1H
> >> National Radio 1963-69
> >> Service Tech, Service Manager
> >
> > Robert Downs - Houston
> > wa5cab dot com (Web Store)
> > MVPA 9480
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