I finally got my hands on one of these rare devices. Its a power supply and a precision amplifier. It was sold as untested and likely not working which is the only reason I could afford it and it was still rather expensive. It turned out that it was indeed not working but as this video shows, going step by step through the process of isolating the problem, I did manage to fix it.
Yes, long time viewers will remember that I built a similar thing myself, see: • Building an OPA541-bas...
and that is still going strong. While that has more amplitude and current, its frequency range is limited to just above 20KHz while the HP467A goes to 1 MHz
The music at the end is from the RU-vid Audio Library and called "Over the Mountain" by Mini Vandals
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0:00 HP467A intro
1:21 power issues
2:27 checking rails
3:05 isolating
4:28 fixing
7:45 nearly there
8:21 power socket
9:57 after adjustment
11:21 using it
12 июл 2024
