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| Opinion on Tektronix 2246 vs 2445 |
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| wn1fju:
Another vote for the 2246. I have several 22xx scopes at home and have used several 24xx scopes at work. The 2246 is my favorite in terms of user interface, features, screen brightness/clarity and serviceability. |
| tggzzz:
--- Quote from: wmundstock on April 20, 2023, 12:49:03 pm ---Hi. I own a Tek 2246 100Mhz 4 channel scope and found a good Tek 2445 150Mhz 4 Channel in good condition with reasonable price in my region. Honestly I always wanted a 2465B but those are rare and very expensive here and it has that "battery" concern. Can you share your opinion on the 2246 and 2445? Would it make any sense to "upgrade" to the 2245? Which scope do you prefer and why? Any pros and cons that I should consider? Thank you! --- End quote --- What would you be able to do with the 2245 that you cannot do with your (working) 2246? If nothing, then there is no benefit to having the 2445. What is the best use of your money? Another scope, or a logic analyser, or spectrum analyser, an HV differential probe, or... What do you want to have achieved in, say, 1 year? Learned the buttons on a new scope, or learned how to use a completely different tool to solve different problems, or... |
| wmundstock:
--- Quote from: tggzzz on April 21, 2023, 04:03:01 pm ---What would you be able to do with the 2245 that you cannot do with your (working) 2246? If nothing, then there is no benefit to having the 2445. --- End quote --- I thought the dual B sweep could be one. And when I created the post, that is the kind of information I was hoping for. Is it worth? Is it really an upgrade or just a side shift? The feedback overall seem to be that other than bandwidth, there isn't much to call upgrade on the 2445. --- Quote from: tggzzz on April 21, 2023, 04:03:01 pm ---What is the best use of your money? Another scope, or a logic analyser, or spectrum analyser, an HV differential probe, or... What do you want to have achieved in, say, 1 year? Learned the buttons on a new scope, or learned how to use a completely different tool to solve different problems, or... --- End quote --- Noted. I just came across that oscilloscope and thought it could be an opportunity for upgrade. But you may be right... perhaps investing on a completely different tool could expand my knowledge and be a better use of the money. Thanks for the advice. |
| tggzzz:
Not advice, merely some questions for you to think about. Often answering questions is easy, but it is more difficult to know which questions are worth answering. In my opinion being able to use a B sweep to "zoom in" is pretty fundamental. When I found some later Tek scopes (e.g. TDS340) couldn't do that, I was more than a little irritated! My recollectiom, possibly faulty, is that it is possible on 22x5 scopes, but is nowhere near as convenient as on the 4x5 and 24x5 scopes. It is always pleasant to converse with someone that both listens and thinks. Have fun :) |
| bdunham7:
--- Quote from: tggzzz on April 21, 2023, 10:27:25 pm ---When I found some later Tek scopes (e.g. TDS340) couldn't do that, I was more than a little irritated! My recollectiom, possibly faulty, is that it is possible on 22x5 scopes, but is nowhere near as convenient as on the 4x5 and 24x5 scopes. --- End quote --- 22x5 scopes is not a good way to categorize. The 2215 and 2235 have a full dual timebase implementation, you set the A and B sweep rates, dial in the delay and there you are. They both even have B-triggers. The only advantage the 24x5 scopes had AFAIK is the dual-B-sweep. The 2225, OTOH, just has a lame magnifier setup and not any sort of dual timebase. You can pick on the poor TDS340, but full-on DSOs really manage things differently with zoom. With only 1000 samples, there's not much you can do. |
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