Wiretap-proof telephone (Jan, 1966)
Filed under: Communications — @ 1:28 pm
Source: Popular Science ( More articles from this issue )
Issue: Jan, 1966
| Buy on Ebay
Source: Popular Science ( More articles from this issue )
Issue: Jan, 1966
| Buy on Ebay
Wiretap-proof telephone
This scrambler keeps private phone conversations safe from wiretappers and eavesdroppers. Fitted to an ordinary handset, it needs no electrical connection, has its own power source. To hear, a person needs an unscrambler coded identically. Delcon Division, Hewlett-Packard Co., Palo Alto, Calif., sells it for $275, keeps your name and code locked in its vault.
“And it only weighs 28 pounds.”
Comment by John M. Hanna — November 24, 2008 @ 1:59 pm
If that woman was wearing any more makeup she wouldn’t be able to open her eyes.
Comment by Charlene — November 24, 2008 @ 3:43 pm
Cool! it’s the compact size one too!
Comment by Al Bear — November 24, 2008 @ 5:15 pm
My first thought was “she’s ironing her head.”
Comment by Myles — November 24, 2008 @ 5:56 pm
It would be better if you could select the code yourself.
I wonder if something like this old technology would be old enough to confuse modern technology that tried to decode it.
Comment by Mike — November 24, 2008 @ 8:37 pm
I guess this was just frequency inversion back then. Nothing special, I have a radio that decodes it as a flip of a switch.
Comment by Casandro — November 24, 2008 @ 10:29 pm
“Are you using the scrambler?”
“I can’t hear you. I’m using the scrambler.”
Comment by Jon — November 25, 2008 @ 3:01 am
Frequency inversion scrambler with fixed inversion point.
Strictly speaking not an encryption system.
Some people can unscramble inverted speech with their ears.
Comment by g663 — November 27, 2008 @ 1:23 am
wow that chick is wearin a rubber nose
Comment by fred — November 29, 2008 @ 6:20 am
Gee. I’d like to see what the prototype looked like.
Comment by dascoyne — December 23, 2008 @ 5:23 pm