[Hallicrafters] Cleaning dials

[Roger K8RI]

----- Original Message ----- 
From: "Roy Morgan" <roy.morgan at nist.gov>
To: <hallicrafters at mailman.qth.net>
Sent: Tuesday, December 20, 2005 10:05 AM
Subject: Re: [Hallicrafters] Cleaning dials


> At 02:58 PM 12/19/2005, Roger K8RI wrote:
>
>>To create a photograph of a dial while keeping the aspect ratio (length to 
>>width) proper takes a bit of preparation....
>>Yes, the camera has to be perpendicular to the scale and aligned with the 
>>center (right, left,  top, and bottom)
>
> If anyone is going to try this, I have two suggestions
>
> 1) A) Illuminate the camera front and arrange things so the image of the 
> camera lens is centered in the view finder.  This sets glass being copied 
> parallel to the film plane (this assumes a fixed lens mount, not a view 
> camera or similar).

Use a "dark room" (turn out all other lights) to eliminate reflections.  You 
may not see them but any light source or reflective object in the room seems 
to find a spot somre where in the copy<:-))

>
> B) Tape strings from corner to opposite corner of the dial to find the 
> center.
>
With the camera mounted vertical (lens pointed down) we used levels on both 
the target and camera..  With the camera horizontal the strings are almost a 
necessity and it's a royal pain to make the original set up.

> 2) (View camera and darkroom workers alert!)  Buy from me my (second) 
> Princeton Copy Camera.  This is a professional thing, 5 feet tall, 7 feet 
> long, meant for copying of flat originals on sheet film. Pickup in or near 
> Washington DC. This is a station waggon full when dis-assembled.  Price 
> *very* reasonable.

What size negative?  5 X 7 or 8 X 10?


I think I might have an enlarger related to it. <:-))  The thing uses 
condensors that are about 8 X 10" and interchangeable for what ever focal 
length lense and negative size is in use.  It looks like it was made using a 
very heavy drill press for the foundation and column.

Take the photos with your copy camera and use the enlarger to make full size 
prints/decals.

Roger Halstead (K8RI and ARRL 40 year Life Member)
N833R - World's oldest Debonair CD-2
www.rogerhalstead.com
>
> Roy
>
>
> - Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
> 7130 Panorama Drive, Derwood MD 20855
> Home: 301-330-8828 Cell 301-928-7794
> Work: Voice: 301-975-3254,  Fax: 301-948-6213
> roy.morgan at nist.gov --
>
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