[Milsurplus] [ARC5] SCR-522 Playing.

[Ken Kinderman]

Does anyone have any info on the dynamic mic that was used with the -522?

Oxygen mask mic? T-44? Impedance? Output level? I have the adapter (I
forget the nomenclature…gotta dig it out) that allowed the use of a carbon
mic. But I’d like to try a dynamic mic with it (T-47 as well).


Ken Kinderman
W2EWL

On Tue, Apr 22, 2025 at 5:05 PM Brenda Gentry via Milsurplus <
milsurplus at mailman.qth.net> wrote:

> The ARC-1 and 4 were based upon a prewar project by Western Electric. In
> their company journal "The Oscillator", they had an article "Aviation
> clears it's Voice", I am fairly certain in 1939 or 40. SCR-522s were often
> adapted for AC power and used at small airfields on 122.8 Unicom. ARC-3s
> definitely made their way into larger private  and surplus military planes
> through the 1960s. Technically,  it was'nt really kosher, but along with
> URC-4s recrystalled and used in Piper Cubs, Taylorcrafts, and Aeroncas at
> small airfields, it went on a lot and very few objected. The BC-639
> receiver reminds me a lot of the SCR-522 receiver even though it is tunable
> instead of rockbound.
>
>      B. Gentry, KA2IVY
> On 4/22/25 10:55 AM, kgordon2006 wrote:
>
> Well, IMHO, it is a typically British design: not particularly
> ergonomically arranged and too spread out.
>
> It is just plain ugly.
>
> However, as you say, it was very important.
>
> The ARC-3 and its later developments were better rigs, but, again, IMHO,
> the 522 started the process.
>
> Ken W7EKB
>
>
>
> Sent via the Samsung Galaxy S21 5G, an AT&T 5G smartphone
>
>
> -------- Original message --------
> From: David Stinson <arc5 at ix.netcom.com> <arc5 at ix.netcom.com>
> Date: 4/22/25 04:37 (GMT-08:00)
> To: ARC-5 <arc5 at mailman.qth.net> <arc5 at mailman.qth.net>,
> milsurplus at mailman.qth.net, MMRCG <mmrcg at groups.io> <mmrcg at groups.io>
> Subject: Re: [Milsurplus] [ARC5] SCR-522 Playing.
>
> I once described it as "an ugly, black lump of a radio," but I've
> warmed to it over the years.  Besides- it's arguably the most
> important aircraft radio deployed in WWII.
> 73 DE Dave AB5S
>
> On 4/21/2025 7:48 PM, hwhall at aol.com wrote:
>
> I have to say, though, the 522 doesn't look very sexy, like ART-13s or even Command Sets.... LOL
>
> Wayne
> WB4OGM
>
>
>
>
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