Options on scope

Discussion in 'General Electronics Chat' started by spinnaker, Nov 8, 2010.

  1. spinnaker

    Thread Starter AAC Fanatic!

    Oct 29, 2009
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    I just ordered a logic analyzer from NKC.


    I just inquired about inexpensive scopes and I was sent a link to this.


    Looks like a pretty good deal. I think the 50MHZ range will be fine for me. I doubt if I will be working with anything more than 10MHZ or so.

    Being I just bought the analyzer and will probably be working with PICs and such I am not sure I really need it. But it sure looks tempting. :)
     
    Last edited: Nov 8, 2010
  2. marshallf3

    Well-Known Member

    Jul 26, 2010
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    To each his own, I prefer an analog scope and the best one made before all this sampling stuff came around.

    http://www.testequipmentdepot.com/usedequipment/tektronix/oscilloscopes/2465series.htm
    http://www.testequipmentdepot.com/usedequipment/pdf/24452465.pdf

    If you call http://www.techrecovery.com they might still have some first version 2465 (not a or b variants) they'll sell for $165

    Don't let the vertical bandwidth fool you, they'll easily work well over 500 MHz but not at 100% accuracy.

    [EDIT:] A scope is an investment and in time you may need to poke into the 433.05–434.79 MHz ISM band that's used so often on about everything nowadays. Shove that frequency full of data pulses at a sampling scope and it will often reach a state of indecision.
    Or just simple things like "my car remote isn't working" - in seconds the scope on my desk at work is on and I can hold their remote keyfob by the probe and verify RF and waveforms.
     
    Last edited: Nov 8, 2010
  3. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
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    I'd stick with analog, unless the digital scope you are looking at is realtime with a Freeze function. The scopes with these features tend to run in the $2-$3k range, example is Tek TDS2024
     
  4. gootee

    Senior Member

    Apr 24, 2007
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    Ah, yes, the Tektronix 2465 series! They are thought by most (and by me) to be the best portable analog oscilloscopes ever made. But I do tend to believe that the Tek 7904A (500 MHz), 7704A (400 MHz), and maybe the 7104 (1 GHz) are the best analog oscilloscopes ever made, if we don't restrict the choice to portables. I have had all but a 7104, and refurbished and sold many different Tektronix scopes. I still have a 300 MHz 2465 and a 500 MHz 7904A (and about fifty 7000-series plug-ins). I almost always use the 2465. But I also really like the 2235 and 2235M, and even the 475, 465, 454, and 453.
     
  5. spinnaker

    Thread Starter AAC Fanatic!

    Oct 29, 2009
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    I am confused the regular 2465 shows at $995.

    $165? is that a different model then the the one shown? What is the bandwidth? What do I ask for?
     
  6. marshallf3

    Well-Known Member

    Jul 26, 2010
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    Ha! I have two (yes 2) 545's A models down in the garage with quite a few plug-ins.

    One is for parts though, think I vandalized it for the HV section and a few 6DJ8's some years back.
    Portable? No. Good heater for the garage? Yes, well over 100 tubes in it.

    Don't even ask about my old HP rackmount stuff that still works including the Nixie tubes. :)

    http://www.messmuseum.de/tek545b.htm
     
  7. marshallf3

    Well-Known Member

    Jul 26, 2010
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    Just call the TechRecovery company (not the other one) on their toll free number, explain that you're a beginner/student and that you need a scope on a budget. They may have a 2445/2455/2465 that's a bit scratched up or missing a knob or two they'd love to sell.
     
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