Radio Frequency Amplifier (22dB HF RX amplifier) AM-4213/FLR-9(V)

Courtesy W1EOF

4-0

4-1

4-2
block diagram

4-3

4-4
Large schematic 4240x2069

4-4 (schematic part 1)

4-4 (schematic part 2)

4-5
top view

4-6
bottom view

4-7
amplifier subassembly board top and bottom view

4-8
amplifier subassembly schematic

4-9
complimentary transistor pair simplified schematic

4-10

4-11
1:4 divider - 4:1 combiner top and bottom view

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1:4 divider - 4:1 combiner schematic

4-13
transformer hybris simplified schematic

4-14

4-15
RF filter top view

4-16
RF filter schematic

4-17
voltage divider network rear view

4-18

1-4
Table 1-1 performance characteristics