Transistors left to right:
BF240
2N3866
2SC1971
KV1310 Dual Varicap:
15pF per diode - 7V - 108MHz
25pF per diode - 5V - 97.5MHz
40pF per diode - 2V - 87MHz
VCO Slope - 4.2MHz/V
Freq ------ Pout --- Pin --- Efficiency
87MHz - 5.5W - 13.9W / 40%
97.5MHz - 7.2W - 13.3W / 54%
108MHz - 6W - 9.72W / 62%
Ideas for PLL control:
TSA5511 PLL Controller.
NodeMCU for display and control of frequency.