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The answer is, "Maybe they're really more expensive than we are." Ask yourself why you're purchasing a piece of test or measurement equipment. The answer is obvious: to give meaningful, precise, repeatable readings and results. Professionals know that the real cost of a piece of equipment isn't only the initial cost, it's the long-term cost, which often includes repair, searching for hard-to-find parts, calibration and of course production down-time when the instrument is off line. So if it's described as calibrated and certified by us there will be no "as-is" descriptions, no "we plugged it in and it powers up" descriptions, no "it came from a working environment" words and no "we don't have the time and expertise to test this item" statements from us, because all of those words may translate to "this is a piece of junk," and we don't sell junk. Teletek: 100% guaranteed satisfaction. Period Excellent Tektronix TDS 420A digital oscilloscope, 200 MHz, 4 channel, serial number B070388. This unit has just been calibrated by our NIST-traceable calibration lab and a Certificate of Calibration is included at no extra charge. The long list of specifications for this unit are readily available on various web sites. This unit includes GPIB, VGA video and Option 5. As for this particular instrument, it passes self tests, its display is bright and sharp, adjustment knobs work easily, and all of the many functions of this oscilloscope are working as specified by Tektronix. Triggering is fast and simple, digital readouts are clear and precise-in a nutshell this instrument works like it just came out of the factory. This is a pre-owned unit showing almost insignificant signs of wear and tear which do not affect the unit's operation. 100% satisfaction guaranteed-return for any reason within 7 days of receipt for a full refund (tamper seals must be in place). Sorry, freight charges are not refundable. If you're not happy, we're not happy! As always, you may call us at for free consultation on this instrument or any other instrumentation requirements you may have. |