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There is a low cost circuit diagram of Christmas star that can be easily maked even by a novice. The main advantage of this circuit is that it does not equire any step-down transformer or ICs.

Parts List:

Parts List:
R1 ------------------ 100 ohm
R2 ------------------ 100 ohm
R3 ------------------ 10 ohm
R4 ------------------ 100K
R5 ------------------ 100K
R6 ------------------ 10K
R7 ------------------ 10K
C1 ------------------ 0.1µ
C2 ------------------ 220µ
C3 ------------------ 0.1µ
C4 ------------------ 47µ
C5 ------------------ 47µ
D1 ------------------ 1N4007
D2 ------------------ 1N4007
D3 ------------------ 1N4007
ZD1 ---------------- 5.6V
LED1 -------------- Any
T1 ------------------- BC548
T2 ------------------- BC548
T3 ------------------- BC548
MT1,MT2 --------- BT136

Circuit Design By: PRINCE PHILLIPS

Source: www.electronicsforu.com