Vectronics VEC-841K, Руководство пользователя

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VEC-841K Owner's Manual Tunable SSB/CW Audio Filter Kit
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INTRODUCTION
Thank you for purchasing the VEC-841K Tunable CW Audio Filter kit. The
VEC-841K consists of a four stage, switch selectable band pass CW filter, using
selected components that will make “cleaning up” CW signals effortless and
easy. Featuring razor sharp selectivity and extremely steep sided skirts, and a
Tunable Notch, makes even the weakest signal stand out. Also, the VEC-841K
has a built-in 1 watt audio amplifier that will easily drive headphones or an
external speaker. With the VEC-841K you bring up any hard to hear signal out
of a “band pile up” for easy listening, or get rid of unwanted, annoying signals.
The VEC-841K also features a headphone output that will allow the use of
standard mono headphones. The VEC-841K is powered from any 9-18 volt DC
power supply.
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. Well-
diffused overhead lighting is a plus, and a supplemental high-intensity desk lamp
will prove especially helpful for close-up work. Safety is an important
consideration. Be sure to use a suitable high-temperature stand for your
soldering iron, and keep the work area free of combustible clutter.
Universal Kit-building Tools: Although your particular kit may require
additional items to complete, virtually all construction projects require a work
area outfitted with the following tools and supplies:
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30-60 watt Soldering Iron
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High-temperature Iron Holder with a Moist Cleaning Sponge
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Rosin-core Solder (thin wire-size preferred)
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Needle Nose Pliers or Surgical Hemostats
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Diagonal Cutters or "Nippy Cutters"
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Wire Strippers
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Solder Sucker, Vacuum Pump, or Desoldering Braid
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Bright Desk Lamp
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Magnifying Glass