[Milsurplus] [ARC5] RU receiver question

[Ron De Silva]

My experience with the restored RAL is similar.

As you say...there seems to be nothing between the signal and you.

So much more pleasing to hear cw on than my DSP filtered radios.

And yes....driving the Regen,gain ,vernier tune to get the "sound" your
ears like.

Paired up with the TDE transmitter , the TDE/RAL  have racked up several EU
and many Asia/ Indonesia contacts on both 40 and 20 meters the last two
years.

Antennas nothing more than 160 ft longwire or 10ft diam. magnetic loop.

The basic function of generating a carrier and detecting that carrier in
its elemental form.The end to end transfer of messages accomplished just as
well as much more sophisticated modern devices.

Ron
NU6F

On Fri, Oct 20, 2023, 11:12 AM howard holden <holden7471 at msn.com> wrote:

> Agreed with Ken on the RAL. I used one at the USS Ling for some 10 years.
> An amazing receiver for one designed in the 30s, and even SSB is easy to
> copy on it. CW is a snap. Crisp, clean, and pretty easy to separate
> signals. My impression is you “drive” an RAL. How you drive it says a lot.
>
>
>
> Howie WB2AWQ Reno NV
>
>
>
> Sent from Mail <https://go.microsoft.com/fwlink/?LinkId=550986> for
> Windows
>
>
>
> *From: *Ken <kgordon2006 at frontier.com>
> *Sent: *Friday, October 20, 2023 9:11 AM
> *To: *David Stinson <arc5 at ix.netcom.com>; Hubert Miller
> <Kargo_cult at msn.com>; 'ARC-5' <arc5 at mailman.qth.net>;
> milsurplus at mailman.qth.net
> *Subject: *Re: [ARC5] [Milsurplus] RU receiver question
>
>
>
> Well, although I have never, yet, used an RU, I DID use an RAL-7 as my
> main and only station receiver for some 12 years.
>
>
>
> I believe the circuitry is very similar: a 6 tube TRF: 2 RF amp stages, a
> regenerative detector, 2 stages of audio, and an "AVC" (a limiter).
>
>
>
> The RAL-7 was designed by RCA. It covers from 300 kHz through 23 MHz.
>
>
>
> I never had any trouble separating AM, CW, or SSB stations with it. The
> user simply has to learn how to use the regeneration control.
>
>
>
> I really liked the receiver. For one thing, it has this "transparent"
> sound: there didn't seem like there was much between you and the signals on
> the band.
>
>
>
> Ken W7EKB
>
>
>
>
>
> Sent via the Samsung Galaxy S21 5G, an AT&T 5G smartphone
>
>
>
>
>
>
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