Enclosure not stated · 4 knobs

Heliotrope

Based on the Catalinbread Heliotrope· 2 other boards clone it

Schematic

The schematic image is on the project page. Open it at PCBWay.

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

Ref	Value	Normalized	Type	Notes
Resistors 9
×4	10k	10k		read from the schematic by eye
×3	1k	1k		read from the schematic by eye
×3	1M	1M		read from the schematic by eye
×2	47	47		read from the schematic by eye
×2	4k7	4.7k		read from the schematic by eye
×1	2k	2k		read from the schematic by eye
×1	3k3	3.3k		read from the schematic by eye
×1	47k	47k		read from the schematic by eye
×1	12k	12k		read from the schematic by eye
Capacitors 7
×2	47n	47n		read from the schematic by eye
×2	10u	10u		read from the schematic by eye
×2	100u	100u		read from the schematic by eye
×1	4u7	4.7u		read from the schematic by eye
×1	22n	22n		read from the schematic by eye
×1	4n7	4.7n		read from the schematic by eye
×1	47u	47u		read from the schematic by eye
Diodes 2
×4	1N4148	1N4148		read from the schematic by eye
×1	1N4004	1N4004		read from the schematic by eye
Transistors 1
×1	2N5457	2N5457		JFET used as sample-and-hold gate; read from the schematic by eye
ICs 2
×1	TL072	TL072		read from the schematic by eye
×1	LM741	LM741		LFO/oscillator; read from the schematic by eye
Potentiometers 4
Gain	A100k	A100k	Potentiometer	read from the schematic by eye
Volume	B100k	B100k	Potentiometer	read from the schematic by eye
Sample	B1M	B1M	Potentiometer	read from the schematic by eye
Resolution	B100k	B100k	Potentiometer	read from the schematic by eye
Switches 1
×1	SPDT	SPDT		unlabelled 3-lug switch choosing 22n or 4n7 timing cap; read from the schematic by eye