[ARC5] [Milsurplus] responsibility to our posterity

[Dennis Monticelli]

Regarding improving the IF BW of the ARC-5 receivers:

The ARRL's Understanding Amateur Radio book from the late 60's (which I
thumbed to death back then) had a section on doing a very simple mod to the
IF to encourage a little Q multiplication in one of the IF tubes.  I recall
that it was no more than a gimmick cap that you twisted until you got just
the right amount of Q enhancement.  Should be easy to remove and restore
originality later.

Dennis AE6C

On Wed, Sep 15, 2010 at 3:13 AM, Kludge <wh7hg.hi at gmail.com> wrote:

> -----Original Message-----
> From: milsurplus-bounces at mailman.qth.net
> [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of
> mstangelo at comcast.net
> > Stock car racing was an outgrowth of the prohibition era when bootleggers
> souped up
> > "stock" cars to use them for the unintended purposes such as outrunning
> the revenue agents
> > and eventually for racing.
>
> More than just Prohibition Era.  Don't forget that moonshine etc was also
> transported in such vehicles at least through the 50s and may still be.
> I've not been keeping up on the status of stills of somewhat questionable
> legality.
>
> > This is like the Ham radio experimenters in the '40's and '50's who
> souped
> up the surplus
> > radios to use them for a different purpose.
>
> This echoes what I said about repurposing equipment.  Hams were looking for
> an economical way to get on the air and surplus - command sets specifically
> - provided it.  After a whole lot of sometimes screwball attempts to "tame"
> the transmitters, someone finally figured out that the best way to operate
> them was as designed.  Well, unless some really different purpose was
> desired like SSB or DSB.  Even there, the simplest and most direct way
> proved to work best.
>
> The receivers were still broad (and I've been thinking of ways to alter the
> IF cans to "fix" this) but how narrow were the receivers the typical
> Depression Era ham could afford or afford to build?  I remember one of the
> gentlemen who mentored me saying how much like heaven it was to have a
> superhet he could actually afford.  Combined with a range filter for CW, he
> was "set for life".  Other bands came later but he was quite happy on 160,
> 80 & 40m.
>
> > Modifying surplus radios is a part of the mil surplus radio history and
> should also be
> > preserved.
>
> Both sanctioned (i.e., official) and unsanctioned modifications, whether by
> the military or other services/agencies, count as well.  Aside from a few
> well known ones like the Admiralty's Lorenz conversions, they seem to be
> hiding.
>
> Best regards,
>
> Michael, WH7HG BL01xh
> http://www.nationalmssociety.org/chapters/NTH/index.aspx
> http://wh7hg.blogspot.com/
> http://kludges-other-blog.blogspot.com
> Hiki Nô!
>
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