Exploratory Electronics Training System (555A)
A voltmeter, millimeter, and an AC/DC power supply are housed in an attractive cabinet that also provides storage for tray-mounted components, connecting leads, and loose hardware.
The built-in power supply provides the student with 0 to 15 volts dc and a fixed 6 volts ac. The Model 555A offers numerous analogies that relate basic principles, concepts, and terms to everyday-life experiences.