A little bit of nostalgia: my Philips power supply.
3 channels. Isolated. Constant voltage and constant current.
And perfectly silent - no spinning fan.
Made in Belgium!
click to enlarge
Over here, Philips was the go-to brand for lab instruments.
When I studied electronics, every instrument - except some Kyoritsu meters - was a Philips.
In my own lab, this supply and a Philips oscilloscope were the pièces de résistance.
I've sold the scope. I still use the power supply a lot.
3 isolated channels:
Voltage and/or Current regulation.
Focus is more on reliability than smooth output.
Specs and schematic below are for the 1542/00 (20 V 20 V 7 V) while mine is a 1542/60 (32 V 32 V 5 V).
Appreciate the discrete input stage <3
Yes. The 3 channels still work perfectly.
The only defect is that the V/A switch of one of the channels doesn't work anymore. It can't show the current on the meter.
It's a known thing with these supplies. Here's someone that shows how to fix that.
That link also shows that there were many configurations for the 3 channels, all sold as the same model number.
When I don't need a programmable supply, this one is ideal.
It's a good supply. Not having a fan next to your ear is a luxury.
And it has been good enough for many labs for many years.