[ARC5] NC-270 Success

[Rich Post]

Hi Richard and the list,

To answer your questions, the Hammarlund HQ-120 and 129 speakers may indeed
have been made for them by Bud.   One of my SP-200 radios resides in a Bud
rack cabinet with the chrome stripes. Your chrome stripe speaker might be a
match.
<http://www.ohio.edu/people/postr/bapix/SP210bk.htm>

There are variations in speaker grille pattern, but I don't know how that
relates to date of manufacture if at all.  Compare the grille of the one
next to my  HQ-129 compared to the one on the HQ-120 page.(link to HQ-120
is on the 129 page)
<http://www.ohio.edu/people/postr/bapix/HQ129.html>

For sensitivity, I do indeed have the ability to measure signal to noise
ratio but mostly when I mention performance and sensitivity on my website,
it is subjective.  Especially since I am mostly dealing with a sample of
one, no general judgment can or should be made.  Like many of the folks on
this list who have quite a few receivers to compare with including some
very nice modern ones, a subjective judgment can be useful.  For example, I
mention 6 meter performance on the NC-270 and that my superregen Heath
Lunchbox can outperform it in sensitivity.  If other owners of the NC-270
have better results on the 6 meter band, let me know.   My experience might
be unique.

 I prefer to leave my radios restored but stock if at all possible, the
main exception being for safety, so my subjective judgments are not based
on "hopped-up" receivers.

Wishing you and all others on the list great DX and lots of joy this
Christmas,
Rich KB8TAD

On Sat, Dec 10, 2016 at 5:38 PM, Richard Knoppow <1oldlens1 at ix.netcom.com>
wrote:

>    I looked through your site, lots of interesting stuff there.
>    You mentioned the speakers supplied for the Hammarlund HQ-120-X and
> other receivers. AFAIK the cabinets were stock Bud items. I have a couple
> with Jensen speakers in them. The cabinet color varies. I think they may
> have offered them in bulk to manufacturers with special finishes. I have a
> couple of old Bud catalogs, they show a similar cabinet with chrome stripes
> running vertically. Hammarlund seems to have offered the same cabinet, with
> horizontal chrome strips for the Super-Pro receivers. Those seem to have
> been sold with unmounted speakers, either Jensen or Rola.
>    Bud made a large variety of cabinets of various sorts and undoubtedly
> changed the details of the styling on occasion. I have other speaker boxes
> with Bud labels on them but of different style from the rounded corner ones
> sold for Hammarlund.
>    Another thought that has nothing to do with speakers:
>    When you speak of sensitivity what exactly are you measuring?
>    Manufacturers specified different techniques, some of which are useful
> only for determining if the gain is normal. Sometimes people plug similar
> tubes into the RF stages and find they make the sets "hot" but never
> measure signal to noise.
> --
> Richard Knoppow
> 1oldlens1 at ix.netcom.com
> WB6KBL
>
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