Free  Schematics

RF   Dividers

1) RF divider by 10     with    K193IE2
2) RF divider by 4    with    K193IE7
3) RF divider by 64    with    SAB6456 (SDA2101)
4) RF divider by 64/128/256    with    MB506
5)RF divider by 64/128/256    with    NEC506
6) RF divider by 10/11    with    SP8695

RF   Oscillators

1) RF oscillator   for   1000 - 1500 MHz
2) Measurement  results    for   RF oscillator 1000 - 1500 MHz
3) RF oscillator   for    350 - 1000 MHz
4) RF oscillator   for   15 - 25 MHz
5) RF oscillator   for   144 - 146 MHz with FM  - 1
6) RF oscillator   for    1.2 GHz - 2.4 GHz
7) RF oscillator   for   144 - 146 MHz with FM  - 2
8) RF oscillator   for   1420 - 2250 MHz
9) RF oscillator   for   450 - 1000 MHz

PLL Synthesizers

1) Block diagram for PLL synthesizer
2) PLL synthesizer - 1
3) PLL synthesizer - 2

Test & Measurement

1) RF detector for  0.001 MHz - 1500 MHz
2)Test generator for 144 MHz with FM

RF Amplifiers

1) RF amplifier for CCIR band  (88 - 108 MHz)

RF Transmitters

1) Simple FM transmitter for 88 - 108 MHz