Finding the appropriate components can be frustrating in the default Eagle setup. Component libraries for CadSoft’s Eagle Layout Editor and diy pedals are available in the zip file linked here: gm-lbr.zip. These libraries gather many of the common components used by diy pedal builders, grouping components by type and indicating values associated with each package size.
Below is a descriptive list of the component libraries, showing their organization. Additional detail appears on the page eagle: components, which also explains how to add components to a schematic in Eagle’s schematic layout editor.
| Library |
Description |
| capacitors, ceramic |
- very small capacitances: 1 – 1000pF
|
| capacitors, electrolytic, polarized |
- large value capacitors: .22 – 470uF (uF = μF = mF)
- often used in power supply filters
|
| capacitors, film, box |
- 1000pF – 2.2uF (uF = μF = mF)
- popular nonpolarized capacitors because they are small
- these have short leads so that pad spacing equals lead spacing
- e.g., WIMA capacitors
|
| capacitors, film, chicklet |
- 100pF – 0.1uF (uF = μF = mF)
- popular nonpolarized capacitors
- available from smallbearelec.com as Panasonic ECQ-B capacitors
- these become quite large for values near 1uF
|
| capacitors, silver mica |
- very small capacitances: 1 – 1000pF
|
| capacitors, tantalum |
- used in the signal path for special character
- found in the tone stack of a ts808 clone
|
| diodes |
- Zener 1N47xx (as in protection for the MOSFET in the AMZ MOSFET Booster)
- rectifier 1N4001-1N4008 (for polarity reversal protection in power supply sections)
- clipping 1N914 (as in a TS808)
- LED (light emitting diode, 3mm and 5mm)
- mostly gathered from Eagle libraries
|
| inductors |
|
| integrated circuits |
- mostly op amps (e.g., 4558, TL072)
- also CD4049 (for Anderton’s Tube Sound Fuzz, the Red Llama, …)
- generally gathered from Eagle libraries
|
| jacks |
- audio and power jacks
- off-board versions and just pads for the circuit board
|
| pots |
- chassis-mount (e.g., Alpha 16mm) pots
- board-mount trim pots (1/4″ and 3/8″)
- all pot values have the same size package; you choose the value of resistance
|
| regulators |
- 78* voltage regulators like the 7805 or 78L05 for producing 5V
|
| resistors |
- 3mm long — the size of 1/8 watt resistors
- 6mm long — the size of 1/4 watt resistors
- all resistor values have the same size package; you choose the value of resistance
|
| supply |
- input, output, ground, and power supply.
- these are used on a schematic for placeholders and on a board for pads for off-board components like jacks.
|
| switches |
|
| transistors |
- small signal amps (e.g., 2N508x)
- switching transistors (e.g., 2N2222, 2N390x)
- JFETs (e.g., J201, 2N3819, 2N5457)
- MOSFETs (e.g., BS170, BS250)
- mostly copied from Eagle libraries
|
| transformers |
- Xicon 42T* transformers available at mouser.com (from Eagle libraries)
- Edcor 10K/10K transformer
|
| voltage |
- ideal voltage and current supply symbols for electronic theory schematics
|