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Need help to identify a part

Discussion in 'Electronic Basics' started by [email protected], Aug 17, 2003.

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  1. Guest

    Can anyone help with this:

    It is in a T0-220 package (of sorts - 5 leads coming from the bottom vs 3) and has the following markings:

    ~ 8612 (there are 2 ~ one just below the first one, unable to display it in a text message - the 'humps' are a bit more pronounced).
    1573
    REL

    thanks for any help or cross reference to it.
    Tim
     
  2. Lord Garth

    Lord Garth Guest

    and has the following markings:
    in a text message - the 'humps' are a bit more pronounced).
    8612 is likely a date code for the 12th week of 1986. The part could be an
    audio amp from
    National Semiconductor. How is it used?
     
  3. Guest

    It is used on a LCD driver board along with a Hitachi HD44790 LCD driver an a
    NCR 52801 (which seems to be some sort of storage eprom). Bascially it's a digital
    odometer circuit with no display and I thought I could save some money to repair it vs
    buying a whole new guage package.

    Pin 1 has a 12v supply to it and pin 5 has a 5v supply to it.
     
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