[Milsurplus] [ARC5] Hacked ARR-7 question

[Michael Hanz]

On 9/16/2020 4:34 AM, arc5 at ix.netcom.com wrote:
> The ANT connector has been replaced with a pilot light.  One can only 
> imagine what other magical "improvements" are waiting inside to 
> delight you.

True that.  Not to mention the fact that a pilot light is already built 
into the set - the one behind the frequency dial.  That warm golden 
light is hard to miss.

But I have seen worse.  The set, an adaptation of the Hallicrafters 
SX-28 in an ARINC enclosure, is still my favorite WWII _aircraft_ 
receiver, passing the BC-348 only because of its IF selectivity 
options.  With the isolation stage tube socket jumpered with a small 
capacitor, it has identical specs to the SX-28A (with the exception of 
the audio output power, since it was only designed to serve headphones.)

Removing the adjustable stop limits for autosweep of a selected 
frequency range of interest seems to force radio buffs to do something 
with that bare shaft, thus the large knob.  I never understood it.  You 
can set the end points to the extreme, and the stops then don't function 
at all.  I guess it's the irresistible ham "need to fiddle" with things 
that already work but do no harm if not enabled.

73,
- Mike  KC4TOS


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/milsurplus/attachments/20200916/bd15d5ab/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: ARR-7-2.jpg
Type: image/jpeg
Size: 70507 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/milsurplus/attachments/20200916/bd15d5ab/attachment-0001.jpg>