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Tektronix 465m vs 465

Discussion in 'Electronic Repair' started by [email protected], Oct 28, 2007.

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  1. Guest

    Does anyone know what the differences are between these two models of
    scopes (if any)?
  2. Jamie

    Jamie Guest

    if memory serves, the M is a higher BW unit.
  3. Jim Yanik

    Jim Yanik Guest

    no,the 465M was a "ruggedized" scope,closer to a 455A2B2 than a regular
    465;not ANYthing like a 465 WRT circuitry.No common parts.
    (dunno about the CRT)
    They both were 100Mhz scopes.

    And it really wasn't more rugged,IMO.
    I'd rather have a 465 than a 465M.
  4. James Sweet

    James Sweet Guest

    465M is the Military version. It's functionally about the same, but it looks
  5. James Sweet

    James Sweet Guest

    CRT has a different part number but it's compatible. I have a 465M CRT in my
    465B and it works fine.
  6. Jim Yanik

    Jim Yanik Guest

    as are all scopes.... ;-)

    electrically,it's totally different;the 465M has one hybrid (TEK-made)IC
    that is the entire vertical preamp. the 465 pre-amp is discrete.

    I also disliked the flex of the 465M plastic case.
  7. James Sweet

    James Sweet Guest

    Touché :)

    What I was getting at is the performance specs are about the same. I wasn't
    aware of the hybrid chips, that's as good a reason as any to avoid it. I
    hate scrapping an otherwise fine piece of equipment because of bad custom
    parts made of unobtanium.
  8. Jim Yanik

    Jim Yanik Guest

    The 465 still has TEK-made ICs in it;the 155-0049-0x sweep logic IC,a
    couple of trigger amp ICs(155-0032-xx)and some have a vertical output amp
    IIRC,the 465 was the top selling scope of all time.

    But there are SO many other TEK scopes that use those same ICs,they are
    still obtainable.
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