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Dual 555 Oddball Oscillator

Schematic

Check before you build · 1 value the reader of this schematic was not sure of

C9, C10: parts list numbering garbled (C8 listed twice); assigned by the C1/C7, C2/C8... pairing

Ref	Value	Normalized	Type	Notes
Resistors 2
R2	1K	1k		read from the schematic by eye
R4	1K	1k		read from the schematic by eye
Capacitors 12
C1	0.01uF	10n		read from the schematic by eye
C2	0.047uF	47n		read from the schematic by eye
C3	0.1uF	100n		read from the schematic by eye
C4	0.47uF	470n		read from the schematic by eye
C5	1uF	1u		electrolytic 25V; read from the schematic by eye
C6	5uF	5u		electrolytic 25V; read from the schematic by eye
C7	0.01uF	10n		read from the schematic by eye
C8	0.047uF	47n		read from the schematic by eye
C9	0.1uF	100n		parts list prints 'C3, C8'; by the pattern this is C9; read from the schematic by eye
C10	0.47uF	470n		parts list prints 'C4, C9'; by the pattern this is C10; read from the schematic by eye
C11	1uF	1u		electrolytic 25V; read from the schematic by eye
C12	5uF	5u		electrolytic 25V; read from the schematic by eye
ICs 2
IC1	555	555		timer; read from the schematic by eye
IC2	555	555		timer; read from the schematic by eye
Potentiometers 2
R1	100K	100k	Potentiometer	read from the schematic by eye
R3	100K	100k	Potentiometer	read from the schematic by eye
Switches 2
S1	SP6T	SP6T		rotary, selects C1-C6; read from the schematic by eye
S2	SP6T	SP6T		rotary, selects C7-C12; read from the schematic by eye