Radio Receivers, from crystal set to stereo

Radio Receivers, from crystal set  to stereo on-line, FREE!                                              author: Miomir Filipovic Chapter I INTRODUCTION  Chapter II PRINCIPLES OF RADIO TRANSMISSION2.1. AM Transmitter 2.2. FM Transmitter 2.3. Wavebands  Chapter III DIRECT (TRF) RADIO RECEIVERS 3.1.The Simplest Radio Receiver 3.1.2. The Antenna 3.1.3. The Ground 3.1.4. Other Components  3.2. The Simplest Amplified Radio Receiver 3.3. Simple Radio Receiver with TDA7050 IC  3.4. Simple Radio Receiver with LM386 IC 3.5. Radio Receiver with Increased Sensitivity Audio Amplifier 3.6. Universal Audio Amplifier 3.7.Receiver with HF Amplifier 3.8. The Audion - Direct Receiver with Drain Detector 3.9.1. Reaction - Type Receiver 3.9.2. Direct SW Receiver for AM, AM-SSB & CW Signals  3.10. Miniature Receiver with ZN414 (ZN414Z) IC 3.11. Pocket Receiver with ZN414 & LM386 IC’s  3.12. Miniature Receiver with ZN415E IC 3.13. Receiver with ZN415 & LM386 IC’s 3.14. Mini Receiver with ZN415 & TDA7052 IC’s 3.15. Direct (TRF) FM Receivers 3.15.1. The Simplest FM Receiver 3.15.2. The Simplest FM Receiver with Audio Amplifier 3.15.3. FM Receiver with One Transistor and Audio Amplifier 3.15.4. FM Receiver with (just) One Transistor Chapter IV  SUPERHETERODYNE RADIO RECEIVERS 4.1.Superheterodyne AM Receivers 4.1.1. The Simplest AM Superheterodyne Receiver (worldwide)  4.1.2. The Fully (not exactly 100%) superheterodyne AM Receiver No.1 4.1.3. The Fully (not exactly 100%) superheterodyne AM Receiver No.2 4.2. Superheterodyne FM Receivers 4.2.1. FM Receiver with TDA7000 4.2.2. FM Receivers with TDA7088T  4.2.2.1. Miniature FM Receiver 4.2.2.2. Stereophonic Receiver Chapter V  APPENDIX 5.1. Making PCB’s 5.2. Computer - Aided Radio Receiver Control  5.3. Receivers with NE612 IC 5.3.1. Synchrodyne AM Receiver 5.3.2. AM Receiver with Synchro - Detector 5.3.3. Input Circuits for the Receivers with NE612 5.4. Universal Audio Receiver 5.5. Additional Circuits 5.5.1. Fine Tuning  5.5.2. Electronic Tuning 5.5.3. Signal Suppressing of Local Radio Transmitter(s) 5.5.4. Dual Tuning 5.5.5. Separation of Stages - Preventing the Oscillation 5.6. The Boxes 5.7. Bimboard, Protoboard 5.8. Universal PCB Plates 5.9. A Modern Oldtimer