curiousmarc
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Hoffman Radio CV-89A RTTY demodulator
🕑 Added 2020-03-15 03:24:45 +0000 UTCLooks at this nifty visitor from the 1950's! Came through my door courtesy of ePay, and packaged well enough so it was not in pieces. Which is amazing considering how incredibly heavy this is. It is used to demodulate FSK signals used in Radio Teletype (RTTY) transmissions, and was probably what our Teletype Model 19 was attached to when it was in service in the Navy. It has 14 tubes in it. I particularly like the little X-Y scope in the middle, to make sure you are tuned to perfection. Of course you can do the same today, and a whole lot more, but simply putting the received radio signal through a garden variety computer sound card, but what's the fun in that. I am not sure when I'll be able to get to it, but I promise to do my best Mr. Carlson impersonation, maybe even change all the caps ;-). And I'll need to find a good friend to transmit some RTTY so I can receive it.
Comments
i love all of your TTY kit, this is a beautiful piece of equipment.
CuriousMarc
Oh thank you Tomeu. I had not seen that one. It shows how it is supposed to slide out of its box nicely. Mine is stuck, and I was wondering how it was supposed to work.
