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@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 for Windows

From: Ken
Sent: Friday, October 20, 2023 9:11 AM
To: David Stinson; Hubert Miller; 'ARC-5'; milsurplus@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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