Products > Test Equipment
Equipping my first home lab. I kindly ask for your help with suggestions
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Hexley:

--- Quote from: bdunham7 on July 05, 2022, 04:38:23 am ---
--- Quote from: TheKid on July 05, 2022, 03:19:39 am ---Ultimately yes I will need a better PSU that is linear but that is a couple of years away.

--- End quote ---
Unless I'm badly misinformed, the GPP-4323 is linear and has one large toroidal transformer.

--- End quote ---
bdunham7 is absolutely right about the GPP_4323 -- it is linear and has a toroidal transformer.  While that transformer is large in the electrical sense, it is physically quite compact -- with the welcome result that the GPP-4323 has a much smaller footprint on the desktop than its competitors. Really quite welcome if space is at a premium on one's workbench.

The fan is also a very quiet at normal loads, which is another welcome feature.
mawyatt:

--- Quote from: bdunham7 on July 05, 2022, 04:38:23 am ---Unless I'm badly misinformed, the GPP-4323 is linear and has one large toroidal transformer.

--- End quote ---

Yes the GPP-4323 is linear and has a toroidal transformer, same for the SDP3303X-E. Both have similar noise levels, are ~ the same size, and fan noise is not an issue with either, they are very quiet.

During our career we developed SOTA circuits, systems and semiconductor chips, and after retiring a few years ago still engage in advanced developments. These continuing efforts require accurate, low noise outputs with precise voltage and current limit settings, and no overshoot on turn on or off and why we selected the GPP-4323 and SDP3303X-E. Many of the circuits we've been involved with have chips that cost upwards of $10K, so one is very careful and utilizes quality supplies for test and evaluation.

Here's how the 3 SDP and GPP stack up on the bench.

Best,
sokoloff:
If you can live with 24MHz and 8 channels on the logic side (at least to start), there are <$20 logic analyzers that use the sigrok software. That’s plenty for most of the low speed serial and digital interfaces, and given the price, I bought one many months before I needed it. Once I needed it, it worked nicely (and was way easier than the Rigol 1054Z that I have).
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