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buying a low cost oscilloscope for tinkering

Discussion in 'Electronic Repair' started by s, Dec 20, 2004.

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  1. s

    s Guest

    any pointers for buying a low cost oscilloscope for hobbyist tinkering
    of tv/vcr etc

    like what freq/voltage ranges generally to look out for.
    are the pc based or handheld LCD ones any good?
    thanks

    s
     
  2. NSM

    NSM Guest

    | any pointers for buying a low cost oscilloscope for hobbyist tinkering
    | of tv/vcr etc

    eBay

    | like what freq/voltage ranges generally to look out for.

    Prices are low. Get the best you can afford.

    | are the pc based or handheld LCD ones any good?
    | thanks
    Not bad - useful for some things.
    Very good but pricey.
     
  3. Gee, oscilloscopes are like cars ... you will get hundreds of opinions ...
    all valid perhaps but all focused on user bias.

    If you have never owned one before, start very basic and start used. For
    example, there are flea markets called "hamfests" where you can sometimes
    pick one up from someone local who cannot screw you as you "know where he
    lives." Ebay is rife with them but be wary!

    Stay away from digital scopes and high price tags until you get your feet
    wet with an older analog scope.

    Bandwidth of 50MHz should be good, dual trace, 20 mV sensitivity. Tektronix
    is the best brand name out there, by the way.
     
  4. Jim Yanik

    Jim Yanik Guest

    One of the least expensive used TEK scopes would be the T932/35,35 MHz
    BW,not having any TEK-made ICs in it,and easily serviceable.
    One of the simplest scopes TEK ever made.

    Or the TEK 442,a rack-mount version of the T935.

    (T932=single channel vertical,T935=2 chan.)

    Next on my short list would be the TEK 2213/15/35 series.(incl. "A"
    versions)

    (not 2230/32 digital models)
     
  5. I picked up a 2213 on eBay not long ago for under $100. Only problem was
    a missing holdoff knob.

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  6. Jim Yanik

    Jim Yanik Guest

    Keep track of the focus string resistors;they have a habit of increasing in
    value until they open. Use 1/2w carbon composition to replace instead of
    carbon film types(TEK's recommended mod)
     
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