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Looking for information on a Stereo Adapter Jack for 1985 RCA TV

Discussion in 'Electronic Basics' started by LBJGH, Jan 8, 2004.

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  1. LBJGH

    LBJGH Guest

    I was trying to install a headphone jack on a 1985 RCA TV/monitor but after
    reading some information about some older TV's being "hot
    chassis" designs I decided to give up on that idea.

    On the back of the TV is a connector similar to a coaxial cable TV connector
    that is labeled Stereo Adapter.

    The manual (yep, still have it) states,

    "Connection for optional RCA Model BSA020 Stereo Adapter. When a TV station
    is transmitting BTSC stereo, and the BSA020 adapter with a stereo amplifier
    and speakers are connected to this jack, you can enjoy true stereo sound.
    See the BSA020 adapter Owner's Manual for more complete information. Do
    not plug any other devices into this jack"

    Anyone know what this adapter is? Is there something I could use to make
    this work for a stereo mini jack for headphones?

    tx.
     
  2. It is raw audio from the demodulator, probably a couple millivolts.
    TV stereo works like regular FM stereo, except the pilot carrier is
    15.734340 KHz, instead of 19 KHz. You should be able to amplify the
    signal for a mono output with no problem. To get stereo, you should look
    around for a used or surplus decoder. The TV isn't stereo without a
    working decoder, anyway.

    --
    We now return you to our normally scheduled programming.

    Take a look at this little cutie! ;-)
    http://home.earthlink.net/~mike.terrell/photos.html

    Michael A. Terrell
    Central Florida
     
  3. LBJGH

    LBJGH Guest

    While I had the case open the jack that I'm referring came from a box
    approximately 4x4x1" mounted just above the audio/video inputs. I wonder if
    the decoder is built-in... ?
     
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