That looks like a steal if
it works, the 2335 can be an involved fix. It looks like a calibration was last done in 06, which means it was working.
Had you been in on the bid, it could have sold for more. Bidder a**r stuck at it, and s/he likely would be a main competitor. a**r seems to be in the industry, knows a deal and how much it could be really worth.
http://offer.ebay.com/ws/eBayISAPI.dll?ViewBids&item=170485041786An estate sale means it was from someone who passed away, but still there is no way to know it was single owner, bought new or second hand. It does imply some improved risk included with the suggestion of calibration.
But a question really isn't if its still working when you get it, but how long it will continue to work after you get it. The uncertainty you get is paid for in the performance/price ratio you receive, very high.
http://www.electronicspoint.com/tektronix-2335-oscilloscope-repair-t122289.htmlhttp://hgroups.info/60-sci-electronics-repair/15294.aspxIf you have a mission critical need, such as a project or a design that is on a
time deadline, be it professionally or in school, can you risk knowing a key tool you need could die or malfunction when you need it most or is simply not reading correctly even if it looks to be working? For a seasoned electronics person, they'd know what to look for, but if you didn't know, it complicates things.
Now, if your project involves a 10 MHz design, you'll need a great tool. But if you're working in DC to 100 kHz, there are a lot of low cost new DSO that work well for that purpose.
For a hobbyist without time pressure, a malfunctioning eBay item just means there is another project to do that now has priority!
Just playing devil's advocate, because I too love great 2nd hand stuff if I can find it and take the risk [
https://www.eevblog.com/forum/index.php?topic=496.0] but before I even bid on items I read the manual, research key parts, found suppliers, so I know I can get it running if it dies, also I made sure it had a self calibrating feature or a full self test.
Drats, kinda wish I got this instead: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=170485041786&ssPageName=STRK:MEWAX:IT#ht_500wt_1154
100Mhz, and it went for $62 shipped.