Cal'd Tektronix TDS 3052C Digital Phosphor Oscilloscope 500MHz 2CH (100 new)

Description

The 3052C in the photos has 13218 hours of use. I also have 2 others with 3667 hours, and the other with 2031 hours.  If you want the lower hours, be the first to buy it (consider that your valuable "hurry incentive").
TEK TDS3052C 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. The first Tek digital scopes to address the blind spot issue were the TDS700series of the mid-90s which called that feature "Instaview" before evolving to the DPO naming.
TDS3052C 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 operated digital scopes Tek made previously (such as T202 [a joke], THS720) is that this one has much better specs, ergonomics, reliability, probe connectivity (listed portables lack BNC rings), and rechargeable battery longevity.
Photos are of serial #s C012731 (vintage late 2012). 1st photo shows front. 2nd shows back. 3rd shows hours (13218, normal for its age), power cycles (1406), and empty error log. 4th shows turn-on screen = there is nothing adverse to report. 5th shows display of a 2Vpp 1Khz signal into CH1 measured correctly both by cursers and auto-measures. 6th shows sub-nanosecond risetime capability of CH2, 7th shows sub-nanosecond risetime capability of CH1. 8th photo shows a 6MHz 1Vpp sine wave. In 9th photo the frequency has been raised to 617MHz which seems to be the upper bandwidth  limit (30% vertical "deflection" loss, 3.5 div from 5 at low freq). 10th shows 1mS time marks measured correctly. 11th photo 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. 12th 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).
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. This latest C version costs around 100 new... makes mine at 18% of Tek's price a bargain! 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). In case anyone is curious, when 2465Bs were only as old as TDS3052Cs are now (about 8y), 2465Bs were selling used for about 1/2 new, so again, <1/5th new is a very good deal,
At BIN, I will send you this calibrated TDS3052C 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 0 (exclusive of transport costs, covers only natural failures - not abuse/overload, tamper seals must remain intact);
b) TDS3BATC rechargeable Li ion battery for 4 used (costs 1 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) TDS3BAT NiCd battery for 5 (smaller capacity, older, heavier, safer to fly);
d) TDS3CHG fast charger for Li ion or NiCd battery for 0 (charges 6X faster than scope 4h vs 24h, works on any voltage between 100 and 250);
e) rack cradle for 0 more;
f) Front Cover for ;
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) TDS3GV Communications Plugin for 0, adds GPIB, VGA & RS232 ports to back of scope;
j) P6139A 500MHz 10:1 probes for 0/each, or pair (2) of new/unused P6139B for 0;
k) rear accessory tray for ;
l) replacing NVRAM for 0 (too soon to do it on this one).
There are extras you could get for it elsewhere on ebay that I don't have (eg: active probes,..).
Please don't make offers for less (I don't like pay cuts; Ebay already cuts my pay by about 13% and if you offer less, I may do/send you less; I have cheaper scopes if this one is beyond your budget).... One exception (to offering less) might be if you are in a foreign country and are trying to reduce your import tax by lowering the "official customs price" (= ebay selling price), but are willing to make it up to me, and if so, please state your reason clearly. Some countries, such as in EU, like to tax in the 30% range, ouch,.. this is strategy is a way to help those clients pay less tax.
Please make sure Ebay has your current correct address before you pay, as that is where I must send item to. Mistakes are costlier to fix after you pay as there are some irreversible "frictional" losses in the system. Ask questions (in English or French) before paying.  It's also 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 soldered-in IC. This is not quite as urgent on this scope as on 2400s I sell which are about 20 years older, so you may be able to postpone this procedure for a few more years. Also, battery death in this scope does not cause calibration amnesia, but will stop calendar/clock.
I ship worldwide. Ebay requires I ship only to your Ebay address with tracking and delivery confirmation, which International Airmail lacks. Ebay's Global Shipping (caps at 99 so can't use it for this 1), UPS (most expensive and what ebay shows), DHL, and FEDEX (less expensive than UPS) are valid international options.
You get a 14 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 14 days, expect to pay extra for 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 presently offer cash refunds (but only store credit) is because Ebay and its payments platforms differ in their definitions of "full refund". One considers a full refund to include all you paid (including shipping, sales commission, and sales tax which never come to me), whereas the other 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 sales tax back, which I won't, so please don't ask me to, and buy prudently, asking questions first.
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 a 2nd item from me. To save 10% on scope, buy anything else cheaper from me first (eg: by my 0 P6139A probe first and this will save you about 0 on this scope). It would be foolish not to.
LOWER HOURS TDS3052C available: If you want same model but with fewer use-hours, please see my 1200 hours 00 TDS3052C listing.
CHEAPER ALTERNATIVE: available by going to my TDS3052B listing.
HURRY INCENTIVE: If you buy it at my asking price by 17 July '21, I will add a P6139A probe FREE , but you may still want to buy a probe first to save 10% on the scope and wind up with 2.