2 layers77 × 97 mm
2 layers117.5 × 138.5 mm
AmpValvular
NotoFederico/Valvular_Amplifier1A valvular amplifier for headphones
- Size
- 117.5 × 138.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 29
- Nets
- 14
- Pads
- 79
- Tracks, vias
- 147, 4
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 19 Apr 2021
- Updated
- 29 Apr 2021
Overview
AmpValvular is an open-source printed circuit board by NotoFederico, from the NotoFederico/Valvular_Amplifier repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 117.5 × 138.5 mm with 29 parts on 14 nets, routed with 147 tracks and 4 vias.
It is built around the LM317 and IRF610. Its parts include 10 capacitors, 8 resistors, 3 ICs, 3 connectors and 2 transistors. It belongs with the audio and music boards of this library.
Main components
2
LM317
SOT-223-40℃~+85℃@(Ta) 0.003%Vout 1 1.3V~37V 1A 40V 80dB@(120Hz) Adjustable Positive Short Circuit Protection、Thermal shutdown SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSJSMSEMIVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
IRF610
TO-220AB-55℃~+150℃ 1 N-channel 1.5Ω@10V 135pF 16pF 200V 3.3A 43W 4V 60pF 8.2nC@10V N-Channel TO-220AB MOSFETsTexas InstrumentsMOSFETs
README
README.mdValvular Amplifier for headphones
Download
| Latest release | Latest development build |
|---|---|
 |  |
Contents
- 1 - Introduction
- 2 - Contributing
- 3 - Licence
1. Introduction
Personal project developed with KiCAD. In order to learn about valve technology and its uses in the world of audio. The result was an audio amplifier that provides a much warmer and deeper sound to the user's ears.
2. Contributing
Pong Game uses the gitflow workflow. If you are implementing a new feature or logic from the original game, please branch off and perform pull requests to develop. If you are fixing a bug for the next release, please branch off and perform pull requests to the correct release branch. master only contains tagged releases, you should never branch off this.
3. Licence
Valvular Amplifier is licensed under the GNU General Public License version 3.
Parts
29| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | .22u | Capacitors_THT:C_Rect_L24.0mm_W7.0mm_P22.50mm_MKT | C1, C10 |
| 2 | 10 | Resistors_THT:R_Axial_DIN0309_L9.0mm_D3.2mm_P12.70mm_Horizontal | R3, R6 |
| 2 | 1000u | Capacitors_THT:CP_Radial_D30.0mm_P10.00mm_SnapIn | C4, C7 |
| 2 | 100k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R1, R8 |
| 2 | 100u | Capacitors_THT:CP_Radial_D10.0mm_P5.00mm | C3, C8 |
| 2 | 150 | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R2, R7 |
| 2 | 1k | Resistors_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R4, R5 |
| 2 | 2.2u | Capacitors_THT:C_Rect_L29.0mm_W9.6mm_P27.50mm_MKT | C2, C9 |
| 2 | 470u | Capacitors_THT:CP_Radial_D25.0mm_P10.00mm_SnapIn | C5, C6 |
| 2 | 50k | Potentiometers:Potentiometer_Trimmer_ACP_CA6h_Vertical | RV1, RV3 |
| 2 | IRF610 | TO_SOT_Packages_THT:TO-220-3_Vertical | Q1, Q2 |
| 2 | LM317 | TO_SOT_Packages_THT:TO-220-3_Vertical | U2, U3 |
| 1 | 10k | Potentiometers:Potentiometer_Piher_PC-16_Single_Vertical | RV2 |
| 1 | Audio_IN | Connectors:StereoJack_3.5mm_Switch_Ledino_KB3SPRS_Horizontal | J2 |
| 1 | Audio_OUT | Connectors:StereoJack_3.5mm_Switch_Ledino_KB3SPRS_Horizontal | J1 |
| 1 | ECC81 | Valves:VALVE-ECC-83-1 | U1 |
| 1 | Jack-DC | Connectors:JACK_ALIM | J3 |
More from NotoFederico/Valvular_Amplifier
1Similar boards
- 2 layers190 × 75 mm
Q17-TURBO
stefaweb/Q17-Amplifier
The Q17 is an error correction HIFI amplifier based on the QUAD405 current dumping principle.
109 parts25GPL-3.0 - 4 layers94.1 × 59.1 mm
- 2 layers160.7 × 86.4 mm
StackedDriver rev 2
currawong-project/picadae
Project files for the Currawong Picadae piano player mechanism
139 parts - 2 layers37.5 × 20.3 mm
LED Dimmer 12V
JeanOlivier/LED_Dimmer_12V
PWM LED Dimmer built around a 555 timer. Designed for 12V+ power supply and using a CMOS transistor to support high power draw.
10 partsGPL-3.0 - 2 layers50.8 × 52.1 mm
- 2 layers156.2 × 58.3 mm
- 2 layers70 × 50 mm
S88iso
GBert/railroad
git clone https://github.com/arendst/Tasmota.git cd Tasmota git tag pio run
33 parts36 - 2 layers100 × 35 mm
Two comparator effect
cyberboy666/two_comparator_effect
analog video posterisation effect - adapted from a rob schafer design
34 parts15GPL-3.0
Questions
How big is the AmpValvular PCB?
It measures 117.5 × 138.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the AmpValvular use?
29 parts, built around the LM317 and IRF610. 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 AmpValvular KiCad files?
From the NotoFederico/Valvular_Amplifier repository on GitHub, at the commit this page was made from: the board is Amplificador Valvular 1.0/AmpValvular.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the AmpValvular design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).