|Adding Sound to your Models Find out how you can use sound
generator ICs to create special sound effects for your models.
|Building a Power Supply| In part 1 of this series we look at
the building blocks of a power supply system and explain the
terms AC and DC. Part 2 of our power supply series briefly
describes the principles of the transformer. Find out how to
build a half or full-wave rectifier for your power supply in the
third part of our power supply series. A single capacitor
provides near-DC in part 4 of our power supply series. In the
final part of our power supply series, we look at voltage
regulators which produce a true DC supply.