Ten-Tec 1253 Assembly And Instruction Manual page 7

generations of Americans to the excitement of radio and
electronics. In fact, its basic performance is superior to many of
the simplest superhet receivers which were considered such a
great step beyond one's first regenerative set'
The reason why this receiver works so well is because there is
much more precision in today's engineering designs and the
manufacturing of electronic parts. we looked carefully at the
practical problems associated with yesteryear's technology and
used today's know-how and components to minimize those
problems. The push-button bandswitching is made possible by
an IC (integrated circuit) designed for computer circuits.
The generous speaker volume is made possible by an IC designed
for car stereos. The simplicity of the multi-band coverage is
made possible by tiny molded coils (L1 to L9). The frequency
stability, quite a problem in older designs, is the result of the
voltage regulator IC and the fairly cool operating temperature of
all the components. And, even though air-variable tuning
capacitors have become quite expensive these days, smooth
main tuning and fine tuning controls are made possible by
"varactor diode" technology.
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