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nanofrog: Thanks for the reply. I just bought a Siglent SDS 1102X to replace a great but aging and temperamental Tektronix 465B (those leaf-switches on the volts/div can be a problem), and a Siglent SDG 2042X to replace an aging and temperamental Interstate F77 signal generator. Both of them are close to 40 years old. The Tek had electrolytic capacitor failures in the power supply a couple of times. The Interstate needed some new caps and a small transistor replacement along the way.
The Rigol DP832 would replace a power supply that I built in the late 1970s and still works, even with the original electrolytic capacitors (also close to 40 years old). It has served me well, but I need something with current limiting, more precise voltage setting, readouts, etc.
I learned an important lesson about grounding with that power supply card design. One end of the main electrolytic capacitors (very long axial capacitors, over 3" [80mm] long) was at the back end of the card, far from the action. The current flow decided to take a more direct route to the edge connector at the front, significantly reducing the effectiveness of the capacitor. Fortunately, a long jumper and a cut trace fixed the issue. I would have to disassemble it to verify what I did, but that will have to wait until I get the Rigol.
Thanks again.