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Two Transistor Reflex Radio

1

 

 

 

Transistors: BC109C

 

L1/L2 are the antenna coils

 

If you can't find a 1mH coil (often called a "choke") you can make one by simply winding about 1 metre of thin wire around a piece of match-stick (or something similar).

N.B.

Solder the resistors first, then the capacitors, then the coil, then finally, the diode and transistors. This reduces the risk of damage to transistors and diode through overheating.

 

Printed Circuit Board : Copper side (magnified)

 

 

Printed Circuit Board : Component side (magnified)

 

 

Long Wave Antenna Connections

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