Enclosure not stated · 3 knobs

Hummingbird

Based on the EarthQuaker Devices Hummingbird· 4 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 10
×2	47k	47k		read from the schematic by eye
×2	2k2	2.2k		read from the schematic by eye
×2	470	470		read from the schematic by eye
×1	1M	1M		read from the schematic by eye
×1	22k	22k		read from the schematic by eye
×1	12k	12k		read from the schematic by eye
×1	27k	27k		read from the schematic by eye
×1	220k	220k		read from the schematic by eye
×1	100	100		read from the schematic by eye
×1	4k7	4.7k		LED current limiter; read from the schematic by eye
Capacitors 7
×3	1u	1u		read from the schematic by eye
×2	2u2	2.2u		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	220n	220n		read from the schematic by eye
×1	10u	10u		read from the schematic by eye
×1	100n	100n		read from the schematic by eye
Diodes 1
×1	1N5817	1N5817		polarity protection; read from the schematic by eye
Transistors 3
×1	PF5102	PF5102		JFET; read from the schematic by eye
×1	2N5089	2N5089		read from the schematic by eye
×1	2N6027	2N6027		PUT oscillator; read from the schematic by eye
Potentiometers 3
Level	B100k	B100k	Potentiometer	read from the schematic by eye
Rate	B100k	B100k	Potentiometer	read from the schematic by eye
Depth	B10k	B10k	Potentiometer	read from the schematic by eye
Switches 1
Range	SPDT	SPDT		not drawn as a symbol: off-board pads 1/2/3 switch the 10u/2u2 timing caps against ground; type inferred; read from the schematic by eye