...snipped quotes...
I've heard the 15 equates to 2013, 14 to 2012 and so on backwards. The 17 is week 17 of the year. So its older stock before the change. Mine is 1521 and has the A probes ie non switchable. I think its week 20 that they changed. One of the threads here has more info on it. What's your letter of calibration say for the date ?
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Darryl
Regarding the probes, I'm going to go out on a limb and email Rigol NA and ask for the A probes to be sent to me... in part because the printed documentation shipped with my unit suggests the A probes.. long shot, but 0 cost to me to try it.
My calibration letter is from the first week of May.
This unit was a drop ship straight from Rigol to me via Tequipment (there was various confusion in the ordering process with Tequipment where they suggested it was in stock on this past Monday, but by Wednesday they told me it was back ordered and it would be a few weeks... I asked them to contact Rigol about a drop ship and I had it thursday AM at $0 cost shipping to me!).
I guess that means Rigol NA still has plenty of older stock on hand for the DS2102.
Now my goal is to actually learn some stuff about electronics. :-) I'm a hobbyist who goes all in with whatever hobby I pick up at a given point in time... after a few weeks of acquisition, I finally have a decent selection of test equipment and components to learn with.
DS2102, agilent E3610A, UDI DM383 DMM, another cheapo DMM, weller WES51, flux, solder, various tools for cutting, shaping, grabbing, holding, breadboards, ICs, a couple of microprocessors, tons of component grab bags from jameco, wires, and not enough time. :-)
As an aside, anyone know how much I should trust the DS2102's default calibration for voltage readings? The E3610A and the DS2012 agree on voltages (at least the DS2012s average agrees, the peak is pretty far off sometimes, especially at lower voltages) but both of my DMMs read low. For example, on a 5 volt setting for the E3610A, the DS2012 average is ~= 5.00 volts, but the DM383 and the other cheapo DMM will read ~= 4.85 volts.
-jbl