Vectronics VEC-1604K - Manual (Page 3)

VEC-1604K Owner's Manual Portable CD Amplifier Kit
1
INTRODUCTION
General Information: Personal CD players are famous for bringing concert-
hall ambiance and bone-rattling realism to private listening. However, there are
times when headphone isolation and dangling cords makes it difficult to carry on
a conversation, share the music, hear the phone ring, or perform other activities.
This great little CD amp helps you get beyond that limitation, extending the
usefulness of your player and turning it into a mini-stereo system. Use it in your
dorm room, at the beach, on the patio, in the workshop--anywhere a full-sized
stereo can't be found! Circuitry uses two high-quality amplifier ICs--just like
those used in car stereo systems. You'll love the full-bodied sound this project
delivers!
Circuitry: Your VEC-1604K uses two (2) TDA1013 4-Watt monolithic audio
ICs (one per channel). Each IC provides both a pre-amp and power amp to
boost weak headphone level signals up to robust speaker levels. Volume for
each channel is controlled individually to maintain stereo balance, while tone is
set by a single control. Use a 12-volt battery, automotive electrical system, or
AC power-adapter--and DC source from 12 to 24 Volts--to run your amp.
Works with any 8 to 16-Ohm speaker system capable of handling at least 4
Watts RMS per channel.
TOOLS AND SUPPLIES
Construction Area: Kit construction requires a clean, smooth, and well-lighted
area where you can easily organize and handle small parts without losing them.
An inexpensive sheet of white poster board makes an excellent construction
surface, while providing protection for the underlying table or desk. Diffused
overhead lighting is a plus, and a supplemental high-intensity desk lamp is
especially helpful for close-up work. Safety is always important! Use a suitable
high-temperature stand for your soldering iron, and keep the work area free of
clutter.
Universal Kit-building Tools: No special tools are required to complete this
kit beyond common items normally used for bench construction. We
recommend the following:
! Soldering Iron (grounded-tip and temperature-controlled preferred)
! High-temperature Iron Holder with Cleaning Sponge
! Solder, 60/40 or 37/63 with rosin or "no-clean" flux (.031" dia. is good
size).
! Needle Nose Pliers or Surgical Hemostats