Here's the datasheet which describes some of the options:
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Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
ok, it seems I only have the B 400Mhz model 4 channel but its in good shape like most of them I saw today..
I did notice one thing however, some of the knobs are ecentric when turned. I don't know if that is normal or signs of bad shafts? They seem to work just fine though..
The Tek 2465 is a major pos. I bought a bunch of them. Soon, the vertical position became erratic. Turns out the contact resistance of the motherboard to the chassis was a major part of the position value.
All the scopes I bought developed this problem. I do not know if it was corected in later versions, but I ended up scrapping all the ones I bought.
Beware this scope. You may buy it cheap, and find it unusable.
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Jeff Liebermann jeffl@cruzio.com
150 Felker St #D http://www.LearnByDestroying.com
Santa Cruz CA 95060 http://802.11junk.com
Skype: JeffLiebermann AE6KS 831-336-2558
I used one that seemed to work right at a job. I found the triggering to be not up to snuff. The thing seemed to blank when it caught a edge until it could sync. I don't need that.
I needed something that would sync up fast because I was troubleshooting TV s that pretty much shut down right away if there is anything wrong.
That one was a 2465 CE I think and I am not sure what options that means. I t did have OSD for voltage and whatever but that stopped working in short o rder. However the time and voltage scales did still show up. But before tha t it would give you a DC reading and whatever on the waveform. Later, an ar cing flyback took the voltage through my body to the scope which wass nbot on a properly grounded outlet and it blew the SMPS in it. I started trying to fix it but time did not allow so I grabbed an old Hameg off a high shelf , fell down doing it and burned myself on the space heater. And really, tha t POS Hameg told me what I needed to know.
Bottom line is I don't need all that fancy shit. If I do anything now it is audio and the old 20 MHz Tenma handles it just fine.
But good luck with it. As far as I know it does not have tunnel diode trigg ering which I think was a Tek exclusive, at least for a time. The rotary co ntrols are just encoders and flip the circuit to different parameters, they are not actual switches like in the old days. But then try to clean some o f those old SOBs and watch the fingers fall off wrecking the scope, or the plugin. I had that problem with 7000 series plugins. My recommendation on t hose is to never take them apart, just flood them and maybe use an ultrason ic cleaner.
The 2465s have a whole bunch of relays, you should be able to hear them cli ck when you change ranges. Those might eventually need to be cleaned and I am of no help on that.
I don't really like the 2465, but it still is a decent scope. I just don't consider it top notch. It falls short of what I would consider a Tektronix.
Plus a couple of the little 500-series plug-in ones. My faves are the 11801C/11802 and the TDS 694C, though neither is really a general-purpose scope. (The 694C with FET probes is good for most things.) The only one I ever had problems with was the 466, which was 25 years old when I bought it. It worked fine till I turned on storage mode, at which point the trace disappeared and never came back.
Probably, if we had time. We were too busy trying to meet shipments, and the 7904's and 7104's had arrived so we really didn't need the 2465's any more. Also, a bunch of HP equipment had arrived - spectrum analyzer, network analyzer, probes, counters, and it was much more important to check them out. And a lot more fun.
This was a few years ago, so IIRC after soldering in a coin-cell you have to run the self-cal, invoked from the maint-selftest menus described in svc manual. The typical failure was FPP batt status, also CKSUM lost nvram.
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