C1	22n	
C2	10u	
C3	4n7	
C4	22p	
C5	22p	
C6	100n	
D1	LED	
D2	1N4148	
R1	2 M	
R2	1k5	
R3	2k2	
R4	2k2	
R5	10k	
R6	1k5	
R7	10k	
R8	1k5	
U1	TDA7330	
U2	TLP521-2 or TLP521-4
U3	LM78L05	
X	4.332 MHz