[HBR] HBR form factor - "mods"

[Mike Hanz]

On 12/18/2010 9:27 AM, Bill Cromwell wrote:
> I would like to change the form factor to something like the ARC5
> command transmitters/receivers. I think HBR would be a bit larger than
> those BUT that general shape would better fit into a smaller radio shack
> I think. The plug-in coils for band changing do not have to be arranged
> near a long band switch so that part of the design really lends itself
> to changing the form. The multi-section tuning cap running from front to
> back also lends itself to changing the form. Obviously one of those wide
> tuning dials is not going to fit. My idea of 'mods' is a rearrangement and
> redistribution of the circuit 'modules' along with a round dial
> mechanism.
>
> Have I overlooked something critical?

I'm sure you have received a lot of replies by now, Bill, but just for 
an added data point, just about all the HF aircraft radios designed 
after 1940 or so took the same approach, for the same reason you 
mention...efficient use of the space available.  One interesting 
exercise might be to look at the redesign of the Hallicrafters SX-28A 
from its wide front panel civilian configuration to the repackaged 
version in the R-45/ARR-7 (http://aafradio.org/countermeasures/ARR-7.jpg 
).  There are other examples that I could cite, but a section by section 
comparison on the Hallicrafters redesign might give you some ideas on 
how to proceed.

Vy 73,
Mike  KC4TOS