On Mon, Apr 26, 2021 at 10:39 PM, Alan Young wrote:
I have put a bid in on a 2246
which was rather low so I doubt that will happen.
If you will be considering one of the 224x line of scopes (2245/2245A, 2246/2246A, 2247A, and 2252A), I'd aim for the 2247A model, it has a couple of very useful additional counter/timer features over the 2246 like direct frequency/period readout which might be handy for amateur radio work, and this model should in most cases command a very similar price as the 2246/A. Or at the very least try to the the improved A version 2246. The next option would be the 2252A which is one up from the 2247A and the only difference is that the 52 has one additional blue button on the front panel labeled "Hard Copy" that allows to print the screen. But in all other respects the 2252A is exactly the same as the 2247A, although it does not come up for sale as often. I have owned a 2247A for 10 years now, and even though I have other scopes including a spec-wise much superior 2465B, the one that almost always gets fired up first is the 2247A as it is a very intuitive scope that has tons of nice and easy to use features. The only thing I had to do to it so far was to preemptively replace all the fast rectifier diodes as it is recommended, and twice the internal Lithium battery (the one that originally came with the scope was already dead). This scope also does not store any cal constants in volatile memory so the demise of the battery does absolutely not affect calibration.
All in all I'd say the 2247A is a nice middle ground between the lower cost design 22xx line and the higher tier 2465/67. Yes the 224x scopes power supply requites a bit of disassembly but nothing as complicated as the 2465. Even the 22xx line requires some disassembly to get to the power supply by removing the shielding cage and the bottom plastic cover, which sometimes can be a bear to remove, so no free lunch on any of these scopes in terms of working on recapping or repairing the power supply which is a given on scopes of this age unless the previous owner has gone fairly recently through the process.
