A simple AM modulator - Bill of materials
Resistors:
R1 47 kΩ
R2 47 kΩ
R3 33 Ω
R4 47 kΩ
R5 10 kΩ
R6 47 kΩ
R7 100 kΩ
R8 20 kΩ
R9 2.2 kΩ
R10 33 Ω
R11 100 Ω
R12 10 kΩ
R13 1 MΩ
R14 2.2 kΩ
Capacitors:
C1 220 μF 16 V
C2 100 nF
C3 68 nF
C4 330 nF
C5 3.3 nF
C6 68 nF
C7 330 pF
C8 33 pF
C9 330 pF
C10 1 μF
C11 270 pF *
C12 680 pF *
C13 100 nF
C14 100 pF
C15 3.9 nF *
C16 6.8 nF *
C17 3.9 nF *
C18 100 nF
C19 100 pF
C20 33 pF
C21 100 nF
C22 100 nF
C23 100 nF
0.25 W resisitor
0.25 W resisitor
0.25 W resisitor
0.25 W resisitor
0.25 W resisitor
0.25 W resisitor
0.25 W resisitor
1 turn horizontal trimmer
0.25 W resisitor
0.25 W resisitor
0.25 W resisitor
0.25 W resisitor
0.25 W resisitor
0.25 W resisitor
Electrolytic capacitor
Ceramic disc capacitor
Polyester capacitor
Polyester capacitor
Polyester capacitor
Polyester capacitor
Ceramic disc capacitor
Ceramic disc capacitor
Ceramic disc capacitor
Ceramic disc capacitor
Ceramic disc capacitor
Ceramic disc capacitor
Ceramic disc capacitor
Ceramic disc capacitor
Ceramic disc capacitor
Ceramic disc capacitor
Ceramic disc capacitor
Ceramic disc capacitor
Ceramic disc capacitor
Ceramic disc capacitor
Ceramic disc capacitor
Ceramic disc capacitor
Ceramic disc capacitor
C24 100 μF 16 V
C25 100 nF
Electrolytic capacitor
Ceramic disc capacitor
C26 100 nF
Inductors:
L1 1 mH
L2 12 μH *
L3 10 μH *
L4 1 mH
Semiconductors:
D1 1N4148
D2 1N4148
D3 1N4148
D4 1N4148
T1 2N2222
U1 NE5532
U2 74HC4060
Ceramic disc capacitor
U3 LM78L05
U4 LM78L08
Other parts:
X1 10.368 MHz *
CN1
CN2
CN3
CN4
JP1
JP2
Voltage regulator IC
Voltage regulator IC
* : See text.
Back
High frequency inductor
High frequency inductor
High frequency inductor
High frequency inductor
Silicon diode
Silicon diode
Silicon diode
Silicon diode
NPN transistor
Double operational amplifier
C-MOS logic IC
HC49 crystal
PCB cinch connector
PCB cinch connector
PCB BNC connector
PCB power supply connector
Two pin, 2.54 mm jumper
Two pin, 2.54 mm jumper