Page 11 - Build Your Own Transistor Radios a Hobbyists Guide to High-Performance and Low-Powered Radio Circuits

Design Goals for Low Power

Low-Power Oscillator, Mixer, and Intermediate-Frequency Circuits
Low-Power Detector and Audio Circuits
" First" Design of a Low-Power Superheterodyne Radio
Parts List

Alternative Low-Power Superheterodyne Radio Design
Parts List
Photos of Low-Power AM Superheterodyne Radios
CHAPTER 10 Exotic or "Off the Wall" Superheterodyne Radios

A One-Transistor Superheterodyne Radio
Design Considerations for a One-Transistor Superheterodyne Radio
Parts List
A Two-Transistor Superheterodyne Radio

Parts List
CHAPTER 11 Inductor-Iess Circuits
Ceramic Filters

Parts List
Gyrators (aka Simulated or Active Inductors)
Inductor-Iess (aka Coil-less) Superheterodyne Radio
Parts List
CHAPTER 12 Introduction to Software-Defined Radios (SDRs)

SDR Front-End Circuits, Filters, and Mixers
Phasing Circuits for 0- and gO-Degree Outputs for I and Q Signals
Multipliers for Generating 0- and 90-Degree Phases

Example Radio Circuits for Software-Defined Radios
Parts List
Second SDR Front-End Circuit for the 40-Meter Amateur Radio Band
Parts List

CHAPTER 13 Oscillator Circuits
One-Transistor Oscillator
Differential Pair Oscillator

References
CHAPTER 14 Mixer Circuits and Harmonic Mixers
Adding Circuits Versus Mixing Circuits
Distortion Can Be a Good Thing (for Mixing)
Single-Bipolar-Transistor Distortion

Simple Transistor Mixer and Its Conversion Transconductance
Differential-Pair Mixer
Harmonic Mixer Circuits

Mixer Oscillator Circuits