
RFBitBangSMT
profdc9/RFBitBanger
A QRP digital transceiver created from readily available parts for off-the-grid maintenance

StylophoneV1
StylophoneV1 is an open-source printed circuit board by Altairu, from the Altairu/StylophoneV1 repository on GitHub. It is a 2-layer board of 182.9 × 67.3 mm with 65 parts on 49 nets, routed with 367 tracks and 0 vias.
It is built around the LM386. Its parts include 36 resistors, 14 capacitors, 3 ICs, 2 diodes and 2 connectors.
StylophoneV1 https://x.com/Flying___eagle/status/1730945111239131318?s=20
| Qty | Value | Footprint | References |
|---|---|---|---|
| 7 | 100nf | Capacitor_THT:C_Disc_D8.0mm_W2.5mm_P5.00mm | C1, C3, C4, C5, C6, C7, C8 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 68k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5, R8, R17 |
| 2 | 0.1 | Capacitor_THT:C_Disc_D8.0mm_W2.5mm_P5.00mm | C13, C14 |
| 2 | 1.5k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R12, R13 |
| 2 | 1.8k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R15, R16 |
| 2 | 12k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R9, R10 |
| 2 | 2.2k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R19, R20 |
| 2 | 2.4k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R21, R22 |
| 2 | 2.7k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R23, R24 |
| 2 | 3.3k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R27 |
| 2 | 3.9k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R29, R30 |
| 2 | 3k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R25, R26 |
| 2 | 4.3k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R31, R32 |
| 2 | 4.7k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4, R34 |
| 2 | 560 | Capacitor_THT:CP_Radial_D10.0mm_P3.50mm | C11, C12 |
| 1 | 1.6k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R14 |
| 1 | 10 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R35 |
| 1 | 100μf | Capacitor_THT:CP_Radial_D10.0mm_P2.50mm | C2 |
| 1 | 100μf | Capacitor_THT:CP_Radial_D10.0mm_P3.50mm | C9 |
| 1 | 10M | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R6 |
| 1 | 10k | SamacSys_Parts:3296W-1 | R33 |
| 1 | 1K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R36 |
| 1 | 2N3904 | Package_TO_SOT_THT:TO-92_Inline | Q1 |
| 1 | 2k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R18 |
| 1 | 3.6k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R28 |
| 1 | 47nf | Capacitor_THT:C_Disc_D8.0mm_W2.5mm_P5.00mm | C10 |
| 1 | 4k7 | SamacSys_Parts:3296W-1 | R2 |
| 1 | 560 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R11 |
| 1 | 58k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R7 |
| 1 | Conn_01x01_Pin | Connector_PinHeader_2.54mm:PinHeader_1x01_P2.54mm_Vertical | J2 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J1 |
| 1 | LED | LED_THT:LED_D3.0mm | D2 |
| 1 | LM386 | Package_DIP:DIP-8_W7.62mm | U2 |
| 1 | LM7805_TO220 | Package_TO_SOT_THT:TO-220-3_Vertical | U3 |
| 1 | LOGO | Library:rapyutarobo2 | G*** |
| 1 | SW_DIP_x01 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | SW1 |
| 1 | Speaker | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | LS1 |
| 1 | TLC555xP | Package_DIP:DIP-8_W7.62mm | U1 |
| 1 | 1N4007G | Package_TO_SOT_THT:TO-220-2_Vertical | D1 |

profdc9/RFBitBanger
A QRP digital transceiver created from readily available parts for off-the-grid maintenance

mattybrad/drumkid
Version 4 was the first successful working design, with full code, schematics, Gerbers, etc available on GitHub.

leomil72/LM80C
A Z80-based homebrew computer withTMS9918, AY-3-8910, Z80 CTC, Z80 PIO, and Z80 SIO


oskitone/poly555
The POLY555 is a polyphonic, analog, square wave synth based on the 555 timer chip.

robfinch/Cores
Cores ===== RTF's Cores Use at your own risk. Welcome to my galaxy of cores. Contained in the directories are IP cores, source code for digital circuits.


It measures 182.9 × 67.3 mm and has 2 copper layers, 1.6 mm thick.
65 parts, built around the LM386. 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.
From the Altairu/StylophoneV1 repository on GitHub, at the commit this page was made from: the board is StylophoneV1/StylophoneV1.kicad_pcb and its schematic StylophoneV1/StylophoneV1.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Its repository states no licence, so its author keeps all rights: ask Altairu before reusing the design.