VFO PLL / VFO con PLL
- One chip VFO Stabilizer - G0UPL
- VFO Stabilizer - PY2MG
- VFO Stabilizer - PA0FRI
- Huff-and-Puff VFO Stabilizer - WN5Y
- VFO Stabilizer - PA0CMU
- 2 x Huff-and-Puff VFO Stabilizers - RSGB
- 40 MHz to 70 MHz 3-band Frequency Stabilizer - DC4KU
- 1 MHz to 100 MHz VFO Stabilizer
- VFO Stabilizer - PA0KSB
- 5.6 MHz - 6 MHz PLL-VFO - YB3DD
- 6 MHz - 6.4 MHz Low-Drift VFO - N6NWP
- PLL for 144MHz Transceiver - WA4DSY
- 100 kHz - 35 MHz PLL - DH1AAD
- Digital Drift Compensation for VFO
- VFO Stabilizer - DL1BT
- VFO Stabilizer - DK3SP
- 10 kHz-step PLL for 2m Transceiver - DK1OF
- PLL for 2m Transceiver - DK1OF
- 135 MHz to 137 MHz PLL - DJ7ZV
- Discrete Phase Comparator - S53MV
- HF VFO Stabilizer
- Minisynth VFO - G4JST
- 38 MHz to 42 MHz PLL
- 144 MHz Frequency Synthesizer - WB2BWJ
- 50 MHz PLL - N7APE
- 144MHz Synthesizer - WA4DSY
- 100 kHz - 100 MHz PLL Synthesizer
- PLL Steps 100 kHz - SPI
- HF FLL Synthesizer
- VFO Stabilizer - DC4KU
- All Bands PLL - JR1PWZ