[ARC5] Brass-tubing tuning-adapter.

[hwhall at compuserve.com]

Speaking of verniers and expanded tuning scales, here's a couple pics of something I found at the local surplus place. They were bagged together like they belonged together but after looking at them at home I'm not sure. I bought the two because they illustrate at least one way to expand the tuning of an ARC-5 type set.

The 4-5.3 dial is the size of an ARC-5 TX (3 1/8 inch dia, stamped B-7524 on back) but if you center it on the vernier ring then it hides the vernier's scale. There are no ID markings on the vernier ring. So... does anyone know what that verner scale ring belongs to, if not the 4-5.3 radio?

Here's links to a couple pics:
https://picasaweb.google.com/115890116694220051659/HamRadio#6055767272410563906
https://picasaweb.google.com/115890116694220051659/HamRadio#6055767270213661266


 Thanks!

Wayne
WB4OGM

 

-----Original Message-----
From: Bill Cromwell <wrcromwell at gmail.com>
To: hwhall <hwhall at compuserve.com>; arc5 <arc5 at mailman.qth.net>
Sent: Thu, Aug 28, 2014 11:30 am
Subject: Re: [ARC5] Brass-tubing tuning-adapter.


Hi Wayne,

That's what I saw. I haven't looked for that yet. I'm an old guy and 
have been outside in the sun and wind scrubbing several years 
accumulation of dust and grime of the house and doing yard maintenance. 
That takes it's toll on old pharts! I have four of the BC-453/R-23 
receivers. I could put together one of each using the Vernier scale on 
one and the scale from this article on the other and compare them side 
by side in actual, on the air use.

I'm guessing a magnet isn't going to hold anything on the case <evil grin>.

73,

Bill  KU8H


On 08/27/2014 10:41 PM, hwhall at compuserve.com wrote:
> The article I have may be the same one. It has a 40m scale illustrated 
> and it used three circlular arcs to cover 7.0 to 7.3 MHz in three knob 
> turns. Each circle was marked with a 100kc scale. The illustration 
> looked very neat but probably was for looks only as the scale marks 
> had to be found experimentally. The pointer was a bent wire held by 
> one of the case screws.
>
> The guy made the scale circles sort of align by marking the first 
> 100kc on one circle, then dropping to the next circle to begin the 
> next 100kc, as so on. Looks like it takes a bit of getting used to.
>
> Wayne
>

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