[Boatanchors] Revived a National NC-44

[Bob Groh]

Thank you, Dave, for the information on the NC-44().  I have a NC-46 which
looks like a somewhat later version of the NC-44 so I saved your page for
future reference.

73
Bob Groh, WA2CKY

On Sun, Apr 30, 2023 at 9:04 PM David Stinson <arc5 at ix.netcom.com> wrote:

> Just revived this very clean, nice National NC-44.
> https://photos.app.goo.gl/4sKWZv9fjtECSifS6
>
> Much less expensive than the famous HRO series of
> that time, it was an "intro" receiver, very like my
> first Novice receiver in 1970, a Hallicrafters S-120.
> Cleaned the band switch and pots, examined for
> broken wires and Hi-resistance grounds.
> Someone had already done a good job re-capping
> the rig, He used Orange drops, which I dislike for
> aesthetic reasons, but he did nice work so I forgive.
>
> If you're going to revive one,
> Get the manual and read it:
>
> https://tinyurl.com/48hcbc8r
>
> This set had a dead LO.MIXER 6K8, a weak 25L6
> audio output and a very bad case of
> "The Golden Diddle-Stick" (severe mis-alignment).
> Not real sensitive above 20 meters, but looks and
> sounds sweet.
>
> If you have an NC-44 on the shelf,
> remember three things:
>
> 1. If the regular NC-44, it's a "transformerless"
> design with the chassis connected to the AC line.
> They left room for mounting an isolation transformer
> to cure this, and you should. For details, google.
>
> Speaker jack has B+ on it and is designed for
> a 1500 ohm load.  Little 8-ohm speaker
> won't cut it.  If you have an older tube-type
> "All American Five" with the 50L6, 35L6, 25L6,50C5
> or, if a transformer type with 6V6/6AQ5 etc.
> or similar output tube, salvage the audio output
> transformer (connects to the speaker on one side,
> and between the Audio Output plate and screen
> on the other).  Connect the NC-44 "Speaker" terminals
> to the "tube" side of the audio transformer and your
> speaker to the "Speaker" side.  You'll get all the
> audio you can stand.
>
> 3. Don't reach around the back blind. all the connectors
> back there have B+ Probably not enough kill you unless
> you're working in the bathtub, but enough to maybe
> make you wet your pants.
>
> Don't expect it to be a Yea-Com-Wood
> "computer with an antenna."
> It's fun and easy to fix,
>   and it looks cool-ish-ly retro.
>
> GL OM ES 73 DE Dave AB5S
>
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