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TurboTom:
Since I must have acquired a really bad case of TEA, I placed a bid on a governmental sales of a TDS8000 sampling oscilloscope that supposedly had been used in a scientific research facility and was offered non-functional...whatever that means. I was quite surprised when I received a letter (yes, by snail-mail  :o) from the sales organization with an invoice, confirming that I got the deal! 300EUR plus tax.

I picked up the instrument which came with all the documentation, software CDs and one 50GHz sampling module included (this alone will outweigh the spendings substantially if I should decide to sell), and was clean as a whiste, not even "real" dust on the fans or inside, and as expected, found all of the three memory backup batteries to be flat. Batteries replaced, instrument calibrated, and still after power cycling I get the error of faulty NVRAM data integrity and another message that relates to calibration data incoherency. So probably I've got to replace that crappy Dallas / Maxim NVRAM module on the acquisition board which seems to fail just too frequently to be coincidence. Anyway, after calibration and without power cycling the instrument, it performs quite well.

Do I really need this monster? Surely not! But it's quite some fun to be able to enter these frequency ranges to actually qualify and quantify fast edges and high frequency signals. Since my version still came with the Windows 98 operating system, and there seems to be improved system software available for an XP O/S equipped version, this update will be next. Fortunately, the instrument came with the latest PC motherboard that should permit this update without too much hassle (I hope...).

Anyway, who can claim that he can measure rise times of 30ps... ?  8)

Cheers,
Thomas

Berni:
Now that is an impressive deal for 300 bucks.

I had to pay that much just for the plugin module on my HP sampling scope.
xrunner:

--- Quote from: TurboTom on July 02, 2019, 04:56:02 pm ---Do I really need this monster?

--- End quote ---

Yes.

Yes you do need it. If you don't believe me ask us here -

TEA Group
bitseeker:

--- Quote from: TurboTom on July 02, 2019, 04:56:02 pm ---Since I must have acquired a really bad case of TEA

--- End quote ---

Yeah, it happens. You'll live.


--- Quote ---I placed a bid on a governmental sales of a TDS8000 sampling oscilloscope that supposedly had been used in a scientific research facility and was offered non-functional...whatever that means. I was quite surprised when I received a letter (yes, by snail-mail  :o) from the sales organization with an invoice, confirming that I got the deal! 300EUR plus tax.

--- End quote ---

Quite a deal, indeed! Nice one, Tom.
beanflying:
So I rolled the dice and seems I need to do a little repair job or two. :-- $400 USD landed on my door from the USA and only $40 of that with evilbay global for freight instead of $120 cost (seller screwup) :-+ So off to the 'shelf' until I find it some time for a little loving and some power.

Valhalla 2500-EP Current Amplifier.

Relay Daughter board has broken stand offs and seems to have relied on the wire and tracks for one of the mounts regardless :horse: :palm:

Shipping hit to the side frame to be taken up with the seller or just suck it up but worst case some gentle heat and clamping will likely take it out. Much less work than my 740B Handle welding job.

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