Power Supply Safety Covers for Astron RS-35A

This is a set of safety covers for an Astron RS-35A power supply. I use one of these supplies to power my ham radio equipment. It is reliable, quiet, and produces clean electrical output.

There is, however, one thing about this power supply design that bothers me -- the four exposed transistors on the back. (See photo without covers.) They are isolated from the case and heat-sink, and carry a voltage of about 24V. The main output terminal is also exposed, although it should be obviou