2 layers39.3 × 106.5 mm 4046-VCO, the printed circuit board in 3D

4046-VCO

A PCB adaptation of Thomas Henry's 4046-VCO stripboard design.

Size: 39.3 × 106.5 mm
Copper layers: 2
Thickness: 1.6 mm
Parts: 84
Nets: 68
Pads: 241
Tracks, vias: 731, 271
Pours: 2
Routed: Yes
KiCad: KiCad 9.0 (file 20241229)
Created: 26 Feb 2025
Updated: 26 Feb 2025

Overview

4046-VCO is an open-source printed circuit board by Icodextrin, from the Icodextrin/4046-VCO repository on GitHub. It is a 2-layer board of 39.3 × 106.5 mm with 84 parts on 68 nets, routed with 731 tracks and 271 vias.

It is built around the LF442AMH. Its parts include 42 resistors, 11 connectors, 5 capacitors, 5 transistors and 4 ICs.

Main components

LF442AMH
TO-99-810pA 1MHz 1V/us 1mV 2 400uA 7uV/℃ TO-99-8 FET Input Amplifiers ROHSTexas InstrumentsFET Input Amplifiers

Project files

Show this board on your page

https://pcbkit.io/boards/Icodextrin/4046-VCO

The board's own page, for a message or a post.

Source

Repository: Icodextrin/4046-VCO
Board file: 4046-vco.kicad_pcb
Commit: 6f581e6
Licence: Not stated

Parts

Qty	Value	Footprint	References
11	100k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R1, R2, R3, R5, R6, R13, R16, R18, R23, R26, R41
6	100k	Potentiometer_SMD:Potentiometer_ACP_CA9-VSMD_Vertical	RV1, RV2, RV3, RV11, RV12, RV13
5	10k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R10, R29, R30, R34, R43
5	2N3904	Package_TO_SOT_THT:TO-92_HandSolder	Q1, Q2, Q3, Q4, Q5
4	100k	Potentiometer_SMD:Potentiometer_ACP_CA6-VSMD_Vertical	RV5, RV6, RV7, RV8
4	1k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R24, R25, R27, R35
3	1N4148	Diode_THT:D_DO-35_SOD27_P12.70mm_Horizontal	D1, D2, D3
3	2.2k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R28, R31, R36
3	75k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R17, R20, R21
2	0.22uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C1, C4
2	120k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R19, R40
2	220k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R15, R22
2	390	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R9, R32
2	TL074	Package_DIP:DIP-14_W8.89mm_SMDSocket_LongPads	U2, U3
1	0.01uF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C5
1	1.5M	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R11
1	1.8k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R39
1	100	Potentiometer_SMD:Potentiometer_ACP_CA6-VSMD_Vertical	RV4
1	100pF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C3
1	12k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R12
1	18k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R33
1	1VOCT	Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles	J1
1	2.2M	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R37
1	3.3M	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R4
1	330k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R42
1	33k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R14
1	3k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R38
1	4.7k	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	R7
1	4046	Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads	U1
1	470pF	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C2
1	500k	Potentiometer_SMD:Potentiometer_ACP_CA9-VSMD_Vertical	RV9
1	50k	Potentiometer_SMD:Potentiometer_ACP_CA6-VSMD_Vertical	RV10
1	Conn_01x03_Socket	Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical	J11
1	EXPFM	Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles	J2
1	HARDSYNC	Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles	J4
1	LF442AMH	Package_TO_SOT_THT:TO-5-8	U4
1	LINEARFM	Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles	J3
1	PMW	Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles	J10
1	PULSE	Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles	J9
1	RAMPOID	Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles	J7
1	SAW	Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles	J6
1	SIN	Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles	J8
1	SW_DIP_x01	Button_Switch_SMD:SW_DIP_SPSTx01_Slide_6.7x4.1mm_W6.73mm_P2.54mm_LowProfile_JPin	SW1
1	TRIANGLE	Connector_Audio:Jack_3.5mm_QingPu_WQP-PJ398SM_Vertical_CircularHoles	J5

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Questions

How big is the 4046-VCO PCB?

It measures 39.3 × 106.5 mm and has 2 copper layers, 1.6 mm thick.

What parts does the 4046-VCO use?

84 parts, built around the LF442AMH. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the 4046-VCO KiCad files?

From the Icodextrin/4046-VCO repository on GitHub, at the commit this page was made from: the board is 4046-vco.kicad_pcb and its schematic 4046-vco.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the 4046-VCO design in my own project?

Its repository states no licence, so its author keeps all rights: ask Icodextrin before reusing the design.