Cald Tektronix TDS 3032B Digital Phosphor Oscilloscope 300MHz 2CH, extras avail

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Location: Antioch, California, United States
Ships to: US,
Item: 404904362827

eBay TEK TDS3032B is a Digital Phosphor Oscilloscope… This means it is a digital storage scope with variable persistence and can offer rep rate clues in the trace intensity or color. DSOs that aren’t also DPOs operate at same intensity regardless of rep rate of signal, so no rep rate clues are offered in what we call «gray-scaling». DSOs that aren’t also DPOs devote almost all their time and resources to AtoD conversion, leaving them with blind periods a significant fraction of the time (they can either sample or AtoD convert, but not both simultaneously). DPOs are far less likely to have blind periods due to excessively one-sided resource allocation (or inability to multi-task). This DPO can run 3600 acquisitions/second to avoid blind spots. BTW, analog scopes also have «blind» periods briefly during sweep retrace, and variably during «holdoff», if you choose it. TDS3032B has 2 channels displaying in 2 colors: yellow for 1, blue for 2 (scope uses a 3rd color pinkish red for math ops). Each of the 2 has all usual coupling choices available, including 50 ohm terminators. Advantages of this scope over others I sell include: a) lightest weight: only 3Kg or 7 pounds (and smallest size), b) offers (optional) battery operation: besides being able to work away from line power, it also means easier floating (and breaking noisy ground loops), c) 10X longer record lengths than 2440, d) power for active probes is available at BNCs (as additional surrounding contacts), and e) more math (fast computational) capabilities (eg: multiplication as may be needed in power calculations). Advantages of this scope over other battery operable digital scopes Tek made previously (such as T202, THS720) is that this one has much better specs, ergonomics, reliability, probe connectivity (listed portables lack BNC rings), and rechargeable battery longevity (NiCd die sooner than Li-Ion). Photos are of serial # C011269, vintage 2007 offered here. First 3 photos show the scope is in nice physical shape. Next 5 photos indicate there is nothing adverse to report and that scope has been used for 26162 hours. 9th shows 0.2Vpp 1Khz nearly square wave fed into both channels showing correct equal response, correct measurement of freq and amplitude, and correct curser displacement. 10th, 11th, and 12 show 2.5Vpp sine signal of 1MHz, 10MHz and 100MHz with no «deflection loss», which finally drops by 30% in 13th photo at about 430MHz (so passes bandwidth easily). 14th and 15th show matching sub-nanosecond risetime capabilities of both channels. 16th shows simultaneous 1mS and 100microsecond tickmarks from my Tek 184 time mark gen. This would be difficult to see on a cheaper/older DSO with less record length than 10Kpoints. 17th photo shows its math FFT (spectrum analyzer) looking at 1mS and .1 mS tickmarks (simultaneously). Since tickmarks are not sine, but impulses, they are harmonically rich, but not equally rich (2 sines waves’ FFT would be just 2 vertical lines). Last shows a probe I offer as a hurry incentive. More details on these scopes is available on Tek’s website, where you can also download manual, and various tech tips. Please note that the C version in current production uses thumb drive memory sticks instead of 3.5inch floppies. The latest C version costs around $16K new (recently ended)… makes mine at a tiny fraction a bargain! Diskettes can still be found, even on ebay, and if your computer is too new to have a floppy drive, external floppy drives with USB can be cheaply found (again on ebay). In case you are curious about what the B version (introduced in 2003) added (over the plain introduced in 1999), it was an ethernet connection in the rear, which can be used to remotely control the scope, and the free addition of (g) & (h). The C eliminated the front floppy as well as the rear 15V outlet and Centronics DB25 port to run a small optional portable printer. The TDS3000 series has had a long 20 year run (longer than 2400s’) and many working specimens corroborate their reliability (it is still recommended you source yours from a knowledgeable source). Please don’t offer less than my asking price as I don’t like pay cuts, they don’t incentize my best efforts on your behalf, and Ebay already keeps about a seventh of what you send. At my asking price, I will send you this calibrated TDS3032B with: apps (g) & (h), and 30 days guaranty. If you offer more, I can add these extras to make it better: a) guaranty extension to 6 months for $220 (exclusive of transport costs, covers only natural failures – not abuse/overload, tamper seals must remain intact; decline any «square trade» extension offered at ebay checkout – I don’t know them but I doubt they know scopes); b) TDS3BATC rechargeable Li ion battery for $570 used (costs $865 new from Tek; not pictured; allows (claims up to 3 hours) cordless operation; adds about 1Kg weight. Tek recommends it not fly in cargo holds of aircraft but rather with passenger and in discharged state); c) soft carry case for $170 more; d) TDS3CHG fast charger for Li ion or NiCd battery for $120 (charges 6X faster than scope 4h vs 24h, works on any voltage between 100 and 250); e) Accessory tray and rear cover for $14 more; f) Front Cover for $65; g) TDS3TRG app module (adds some advanced trigger capability based on logic/pattern recognition); INCLUDED FREE h) TDS3FFT app module (adds some frequency domain/spectrum analyzer capability); INCLUDED FREE i) rack cradle for $50 more; j) P6139A 500MHz 10:1 probes for $120/each; k) rear accessory tray and cover, for $14; l) replacing NVRAM for $200; There are extras you could get for it elsewhere on ebay that I don’t have (eg: active probes,,..). If Ebay stops you from offering more, let me know, and I will still sell you what you want. Please don’t make offers for less unless you’d be ok with a lesser model (go/read to end where I mention cheaper alternatives). Ask questions (in English or French). It’s a good way to discuss your exact needs, match you with correct package, options, accessories… before you hit BIN. Another advantage of buying from me is that I offer to replace the old Li battery backed timekeeping NVRAM, whereas others don’t. It’s not trivially simple or an end-user’s task: instead of usual 2 terminals for a battery, the battery is embedded inside a 24 pin soldered-in IC (I add a socket upon replacing to make it easy next time). I ship worldwide, including to most countries on ebay’s dumb exclusion list. Ebay requires I ship only to your Ebay address with tracking and delivery confirmation, which International Airmail lacks, which is why it is not an option if you buy on Ebay. UPS (most expensive), DHL, and FEDEX (usually least expensive to major destinations) are valid international shipping options. Ebay’s shipping calculator often exaggerates shipping so foreigners would do well to ask me for a quote giving me their exact address and asking for a revised invoice before paying what ebay asks for, or opt for «local pickup» to avoid inflated shipping calculator (I don’t expect you to come pick up, but it’s just a way to separate item’s cost from some inflated shipping). You get a 30 day right of exchange (or store credit), provided you return everything in same shape as found, tamper seals aren’t breached, pack as well as I, and pay for all shipping. If you need guaranty extended beyond 30 days, I offer that, though I doubt you really need it (has proven quite reliable thus far). Ebay as a large e-commerce site, collects sales tax for many of the 50 States. I have no control over that, and I don’t charge sales tax on my own out-of-California sales. If you are outside California and don’t feel like paying a large sales tax, buy something cheap(er) from me first (eg: a probe), and a workaround will present itself. Also, the reason I cannot offer cash refunds (but only store credit) is because Ebay and its payment platforms differ on their definitions of «full refund». One considers a full refund to include all you paid (including sales tax which never comes to me), whereas the considers a full refund to be just the return of what I got. To give a full refund I’d have to «go into the hole» so you can have your shipping and sales tax back, which I won’t, so please don’t ask me to. It’s not my fault the payment system has irreversible «frictional» losses. Another reason is the money is spent very soon after you pay me. Please ask questions before you pay and buy prudently. I leave +feedback after you do. Works on any line voltage between 100 & 240 Vac w/o need for 115/230 switch… Ideal for world travel. Consumes only 35W (about half of a typical analog scope, about a fourth of a fullsize DSO). Buy more than 1 INCENTIVE: I will give you a 10% DISCOUNT on buying subsequent items from me. To save 10% on scope, buy anything else cheaper from me first (eg: buy my accessory tray, or my $120 P6139A probe, first and this will save you 10% and also spare you the sales tax on the scope if you are not in California). HURRY INCENTIVE: If you buy it at my asking price by 14 Apr 24, I will add a Tek P6139A probe (was $500 new @ Tek) FREE. I’d still suggest you buy a probe from me first to save 10% (+ sales tax) on the scope and wind up with 2..

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