Introduction - Ten-Tec 1253 Assembly And Instruction Manual

Introduction

The T-KlT 1253 receiver features electronic switching among the
most popular international broadcasting and ham bands between
1.8 and 22 MHz. Far more "deluxe" than most simple kit-built
receivers, it has ample audio power for a built-in speaker,
convenient front panel controls, and a top quality cabinet.
The T-KlT 1253 continues the tradition of inexpensive shortwave
radio kits which began as a phenomenon of the Depression years
before World War ll. Many a career in electronics has been
launched by the first thrill of building one's own radio set that
could pick up signals from around the world. You're about to
build and enjoy a practical shortwave receiver which employs a
circuit concept as old as the 1920's but which uses modern
engineering that takes advantage of the advanced capabilities of
today's electronic components and circuit design.
Our goal was to design the very best multi-band shortwave radio
kit for AM-SSB-CW reception in its price class. We live now in
an age where that kind of money can buy very sophisticated
major-brand electronics gadgets, including stereos, cordless
phones, music keyboards and even portable shortwave radios
(without CW-SSB reception capability). We have come to expect
quite a lot from our "consumer electronics" dollar, because
today's electronic technology is marvelous indeed.
Even if you have never worked with electronic parts before, you
can successfully build this receiver by carefully following all
the directions in this book. Step by step, we'll show you how
to build it and how to enjoy it.
One purpose of your receiver and the details provided in this
instruction manual is to help you become better acquainted with
radio communications and electronics . . as a hobby, as a
possible profession, or both. As a matter of fact, this receiver
design incorporates many if not most of the basic circuit building
blocks used in all communications equipment:
✔
RF amplifier
✔
RF oscillator
✔ Varactor tuning
✔ Resonant L-C circuits
✔
Buffer-amplifier
✔
Audio preamplifier
✔ Integrated audio amplifier
✔ Integrated voltage regulator
✔ Digital logic IC
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