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AM / FM Radio Kit

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12.00 Ounces
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 Product Description

AM/FM Radio Kit

This kit is a great, low-cost and fun introduction to electronics. It does require soldering of one SMD componenent and aligning the radio requires a certain amount of expertise. 

It is therefore best used as a "guided" introduction with someone who does have some electronics experience and fine soldering.

This kit comes with English instructions.

Radio Kit Contents                                                             

Resistors        Type     Value   Marking

R1                                0.25W       1K             Brown Black Red

R2                                0.25W       33K           Orange Orange Orange

R3                                0.25W       22K           Red Red Orange

R4                                0.25W       680R         Blue Grey Brown

R5                                0.25W       1.5K          Brown Green Red

R6                                0.25W       10K           Brown Black Orange

R7                                0.25W       22R           Red Red Black

R8                                0.25W       2.2K          Red Red Red

R9                                0.25W       330R         Orange Orange Brown

R10                              0.25W       100K         Brown Black Yellow

R11, R12                     0.25W       4R7            Yellow Violet Black                                      

Capacitors      Types   Value   Marking

C1                                Ceramic    470pF        471

C2, C5, C6, C9,

C16, C18, C20,

C24, C26, C27,

C28, C29, C30             Ceramic    0.1uF         104

C3, C19                       Ceramic    2000pF      202

C4                                Ceramic    68000pF    683

C7                                Ceramic    220pF        221

C8                                Ceramic    25pF          25P

C10                              Ceramic    82pF          82P

C11                              Ceramic    5pF            5P

C12                              Ceramic    330pF        331

C13, C17                     Ceramic    3300pF      332

C14                              Ceramic    180pF        181

C15                              Electrolytic220uF       220uF

C21                              Electrolytic10uF         10uF

C22                              Ceramic    0.01uF       103

C23, C25                     Electrolytic100uF       100uF                                           

Variable Capacitor                             

Ca, Cb                         Twin gang                                     CBM-444                                                       

Inductors         Type                 Value  

L1                                Air core 5mm             7T5 (7.5 turns)           

L2                                Air core 5mm             8T5 (8.5 turns)                                                                 

Switch             Type                 Value  

S1                                PCB Mount                  SPDT                                                              

ICs                   Function          Value  

IC1                              FM Receiver IC          CD9088    

IC2                              AM Receiver IC         TA7642    

IC3                              Audio Amplifier IC    TDA2822 


Other Named Parts                            

J                                   Earpiece socket          3.5mm      

VOL-SW                    On-Off and volume    10K          

AM                              Coil + ferrite bar                         

LED                            Red LED                     3mm         

BL                    Loudspeaker  8R 0.5W   

Battery Holder

BH1Positive + negative plate

BH2Positive plate

BH3Negative plate


+3V wire red1

GND wire black (-3V in original sheet)1

Speaker wires yellow2

FM antenna wire yellow1



PCB securing screw, 2mm X 3mm self tapping1

Volume Control

Volume knob1

1.5mm X 6mm machine screw1

Tuning Control

Tuning knob1

1.5mm X 6mm machine screw1


Tuning scale1

FM Antenna

Extendible rod antenna1

2mm X 5mm screw1


Case front1

Case rear1

Case securing screws, 2mm X 9mm self tapping3

Case securing screw inside battery, 2mm X 6mm self tapping1


Ferrite rod mount1

S1 switch cover1

Original instructions and schematic1




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