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Old Electronics Identification

Discussion in 'Misc Electronics' started by Joe Bott, Feb 4, 2004.

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  1. Joe Bott

    Joe Bott Guest

    Hello! While digging through my Dad's old stuff I found an odd little
    device. Amazingly, after who knows how many years, the battery still
    worked! Its some sort of tone-generator, and I'm curious about what the heck
    it'd be used for. The only markings on it say "Sanyo RC-555B", but that
    hasnt gotten me anywhere so far. Heres a picture and an mp3 of the sound it

    If it helps, my Dad worked in telecommunications. Thanks for any

  2. Jim Thompson

    Jim Thompson Guest

    It sounds like "ring" to me ;-)

    I have a similar looking device around here somewhere that could
    generate touch-tone signals acoustically.

    While contracting at Honeywell I needed to make personal-business
    calls, but their digital switchboard couldn't handle my dialing to my
    own long-distance provider and then keying in the number I wanted to

    So I dialed my provider, then used the tone generator to complete the

    ...Jim Thompson
  3. Joe Bott

    Joe Bott Guest

    Hmm, he did have an old answering machione laying around. It's quite
    possible that it was a Sanyo also. Unfortunately, it's long gone.

    Well, if thats what it is, thats pretty boring. :) I didnt realize such
    things existed, but you're probably right.

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