[ARC5] [Milsurplus] RU receiver question

[Ken]

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 W7EKBSent via the Samsung Galaxy S21 5G, an AT&T 5G smartphone
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