Power supplies

K-PO KPS28SW a Low Noise Switch Mode PSU, where it is possible to move noise, if present in radio It can deliver an output current at 28A (max), 20A (continuous) and the voltage can be set to DC13.8V for radio use, or variable 9V-15V.

MSE, a generic Switch Mode PSU with fixed 13.8V DC output, and able to provide 25A. The box said that it was intended for trade fair stands where they are used to supply, for example, several car radios.

I have a RIDEN RD6012W even though I ordered the version without WiFi. It can supply 0-60V DC, 0-12A. That means 720W. The 18A version comes with USB and WiFi. It is also available in 6A (360W) and 18A (1080W) versions.

I made a DIY insulated vario trafo capable of delivering 0-280V AC and fixed 240V AC, 2A. I peeled the pieces off an old variac transformer and an isolation transformer from an old power supply from the postal service and combined them in a new project case. In an attempt to update it with a 0-390V DC output, inspired by a video from Tony Albus, I modified another isolation transformer with current limiter, and put the DC supply in a separate project case.

I found a small and cheap PSU with an analog meter: SUNSHINE P-0503C PSU with ammeter, 3A, 5V DC. Suited for small breadboard projects on the bench.

I have a CL1850 Quicktest QT1, with a 13A fuse, for the times I just have to test some mains voltage, where it works as an old knife switch that has to be closed before it makes an electric connection. It is quick to connect or disconnect the connection in a safe way. With its lid open the wires of a plugless lead can be inserted into the insulated clips. When the lid is closed, current passes to the equipment being demonstrated or tested.