Oh,
By the way, I also hate the feel of the buttons on the HP49 and HP 50. They fatigue you after using them for extended periods because they are hard to press and mushy.
I still use my HP-41CX most followed by the HP-67 on my bench. Sure hard to keep the batteries in good condition with the older series from the HP-35, and 45 (my first calculator in school), through the next few years (like the Classic Series that had P-MOS device technology). Oh No, I'm in the middle of a test and I forgot to charge another battery pack last night...
Ross
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In SI, a little termination and attention to layout goes a long way. In EMC, without SI, you'll spend 80% of the effort on the last 3dB.
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