Hi David,
It's probably easier just to generate one in audio editing software.
According to
http://www.tech-faq.com/frequencies-of-the-telephone-tones.html , the
"Recorder Warning Tone" was a .5 second burst of a 1400 Hz tone every 15
seconds.
Michael Shoshani
Chicago
On 1/15/2015 12:35, David Breneman wrote:
> Does anyone here know where I can find a recording
> of the intermittent "beep tone" (that's what it's called in
> official documents) that the FCC used to require radio
> stations to play, when they aired a phone call, in the 60s
> and 70s? It was sort of a "ping" sound that went out over
> the phone line (and over the air as a result) every 10
> seconds or so. Thanks!
>
> --
> David Breneman
> [log in to unmask]
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