BC547 x2
BC557

3x 1nF
2x 10nF
2.7pF
12pF

1M resistor
4K7
2K2
47K
2x 330R

ULN2803

Relays

Q1	J201 N-channel JFET
R1	3.0M ohm 1/4-watt 5% resistor
R2	2.2K ohm 1/4-watt 5% resistor
R3	6.8K ohm 1/4-watt 5% resistor
R4	51K ohm 1/4-watt 5% resistor
C1	4.7 uF electrolytic capacitor
C2	10 uF electrolytic or tantalum capacitor