Vectronics VEC-1292K - Manual

VEC-1292K Owner’s Manual Stereo Transmitter Kit
1
INTRODUCTION
General Information: This nifty little transmitter will send your favorite tunes
with you--throughout the house or out in the yard. Wish your Walkman
TM had a
CD player? No problem! Connect the VEC-1292K to your stereo's CD player
and broadcast it to where you are. Can't pick up that distant FM station down in
your basement shop? Simple! Connect the VEC-1292K to your stereo's FM
tuner (the one with the big antenna), and rebroadcast the program on a clear
channel. Thanks to the transmitter's specialized IC, you get true stereo with
outstanding signal quality--just like FM radio stations generate from their
studios. The uses are endless!
Circuitry: The VEC-1292K uses a sophisticated IC containing all of the
circuitry needed for a miniature FM broadcast station. The audio stages,
multiplex-stereo modulator, and transmitter RF section are all there--on one
chip! The transmitter's sub-carrier oscillator is crystal controlled for rock-steady
stereo lock-up on receivers. A channel balance control ensures perfect
symmetry. It's even pre-emphasized for the 75 uS US-broadcast standard. The
IC has everything you need to put a broadcast-quality stereo signal on the air in
your own home. Operating frequency is internally adjustable, and a tuned output
network matches the transmitter to a built-in collapsible antenna.
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