2 layers100 × 90 mm
2 layers114 × 89 mm
Ayn-4b
afiskon/ayn-4b7Portable QRP CW Transceiver
- Size
- 114 × 89 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 278
- Nets
- 187
- Pads
- 762
- Tracks, vias
- 1,073, 200
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 12 Mar 2023
- Updated
- 9 Apr 2026
Overview
Ayn-4b is an open-source printed circuit board by afiskon, from the afiskon/ayn-4b repository on GitHub, published under the MIT licence. It is a 2-layer board of 114 × 89 mm with 278 parts on 187 nets, routed with 1,073 tracks and 200 vias.
It is built around the LM386, NE5532 and 24LC64(LX), with the L7805, MMBT3904 and 1N4148W among its other parts. Its parts include 105 capacitors, 67 resistors, 18 transistors, 17 diodes and 12 connectors. It belongs with the radio and wireless boards and the STM32 boards of this library.
Main components
12
LM386
SOP-80.2% 0℃~+70℃ 4V~12V 4mA 50dB 700mWx1@8Ω Analog voltage gain SOP-8 Audio Amplifiers ROHSGcoreAudio Power OpAmpsNE5532
SOP-8-22V~22V 0℃~+70℃ 100dB 10nA 14mA 2 40V/us 42mA 4mV 800nA 8nV/√Hz@30Hz Built-in compensation SOP-8 Operational Amplifier ROHSSungineOperational Amplifier24LC64(LX)
SOP-8-40℃~+85℃ 1,000,000 cycles 1.8V~5.5V 100 Years 1MHz 5ms 64Kbit Hardware write protection function、Noise suppression function I2C SOP-8 EEPROM ROHSlingxingicEEPROM
L7805
TO-220ST0℃~+125℃@(Tj) 1 1.2A 20V 2V@(1A) 42uV 500uA 5V 73dB@(120Hz) Fixed Positive Short Circuit Protection TO-220ST Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSOSENVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
MMBT3904
SOT-23-55℃~+150℃ 1 NPN 100 100nA 200mA 200mW 300MHz 300mV 40V 6V NPN SOT-23 Bipolar (BJT) ROHSJiangsu Changjing Electronics Technology (CJ)Bipolar (BJT)
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
G6K-2F-Y-5V
SMD,10x6.5mm-40℃~+70℃ 100mW 100mΩ 1A 237Ω 300mA@125VAC、1A@30VDC 3ms 3ms 5V 60V@DC、125V@AC Silver+gold alloy Two groups of conversions: 2C(Double-pole double-throw conversion) SMD,10x6.5mm Signal Relays ROHSOmronSignal Relays
1N4736A
插件,D2.03xL4.06mm-65℃~+200℃ 1 Independent 10uA@4V 1W 3.5Ω 6.46V~7.14V 6.8V 700Ω ±5% 插件,D2.03xL4.06mm Zener Diodes ROHSonsemiZener Diodes
BS170
TO-92-55℃~+150℃ 1 N-channel 1.2Ω@10V 17pF 2.1V 24pF 500mA 60V 7pF 830mW N-Channel TO-92 MOSFETs ROHSonsemiMOSFETs
IRF510
TO-220AB-55℃~+175℃ 1 N-channel 100V 180pF 43W 4V 5.6A 540mΩ@10V 8.3nC@10V TO-220AB MOSFETsonsemiMOSFETsMMBF170
SOT-23-55℃~+150℃ 1 N-channel 11pF 2.1V 2.2Ω@10V 200mA 22pF 2pF 300mW 60V SOT-23 MOSFETs ROHSDiodes IncorporatedMOSFETsMMBT3906
SOT-23-55℃~+150℃ 1 PNP 100 100nA 200mA 200mW 300MHz 300mV 40V 5V PNP SOT-23 Bipolar (BJT) ROHSTWGMCBipolar (BJT)
README
README.mdAYN/4B
Portable QRP CW Transceiver
- Covers 40, 30, 20 and 17 meters
- Classical single IF superheterodyne design
- Has just a few barely hearable (~S0) spurious signals
- Simple but effective AGC
- Supports RIT and XIT
- 10-30 WPM Elekey-B type keyer + straight key mode
- Keyer supports record and playback, programmable with paddles
- ~5W class D power amplifier
- Has a VCC indicator and a SWR meter
- PCB is designed to fit into Hammond 1590BB enclosure
- The project is 100% open-source
Links:
- Article (in Russian): https://eax.me/2023/2023-05-01-ayn-4b-transceiver.html
- Demo: https://www.youtube.com/watch?v=IM0qo4IA7QQ
- Fork by Kirill, R2AXZ with CMake support: https://github.com/r2axz/ayn-4b
Parts
278| Qty | Value | Footprint | References |
|---|---|---|---|
| 40 | 0.1u | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C2, C26, C27, C28, C29, C30, C31, C32, C34, C35, C36, C37, C38, C102, C104, C105 +24 |
| 14 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q5, Q6, Q8, Q9, Q10, Q11, Q13, Q14, Q15, Q16, Q17, Q18 |
| 13 | 1N4148W | Diode_SMD:D_SOD-123 | D1, D2, D3, D6, D7, D8, D9, D10, D11, D12, D13, D15, D17 |
| 12 | G6K-2F-Y | Relay_SMD:Relay_DPDT_Omron_G6K-2F-Y | K1, K2, K3, K4, K5, K6, K7, K8, K9, K10, K11, K12 |
| 10 | 150p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C18, C20, C21, C22, C23, C24, C61, C64, C100, C101 |
| 9 | 1-30p | My_Library:C_Trim_THD_L7.0mm_W6.5mm_P5.00mm | C62, C63, C67, C68, C72, C73, C77, C78, C103 |
| 8 | 1K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R10, R16, R25, R27, R38, R48, R56, R57 |
| 8 | 4.7K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2, R5, R6, R54, R66, R67, R68, R69 |
| 8 | T37-6 | Package_DIP:DIP-4_W7.62mm | T4, T5, T6, T7, T8, T9, T10, T11 |
| 6 | 1.8K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R4, R9, R41, R42, R43, R44 |
| 6 | 270p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C60, C65, C70, C75, C80, C98 |
| 6 | 9.000 | Crystal:Crystal_HC49-U_Vertical | Y1, Y2, Y3, Y4, Y5, Y6 |
| 6 | T37-6 | My_Library:Toroid_T37_Vertical_THD_L7.0mm_W6.5mm_P5.00mm | L3, L4, L5, L6, L7, L8 |
| 5 | 0.01u | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C33, C56, C58, C59, C85 |
| 5 | 100 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R33, R59, R60, R63, R64 |
| 5 | 10u | Capacitor_SMD:CP_Elec_4x5.4 | C44, C47, C82, C83, C84 |
| 5 | 22 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R12, R18, R19, R46, R49 |
| 4 | 10K | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV1, RV2, RV3, RV4 |
| 4 | 3.3K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R13, R20, R22, R36 |
| 4 | 330p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C13, C15, C16, C17 |
| 4 | 68p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C12, C25, C76, C79 |
| 4 | Conn_01x02 | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J1, J6, J7, J10 |
| 4 | Conn_Coaxial | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J8, J9, J11, J12 |
| 4 | FT37-43 | Package_DIP:DIP-4_W7.62mm | T1, T2, T3, T12 |
| 4 | MountingHole_Pad | My_Library:MountingHole_M3_Pad_Large | H1, H2, H3, H4 |
| 3 | 1.3K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R14, R21, R23 |
| 3 | 100K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R35, R40, R45 |
| 3 | 220p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C14, C95, C96 |
| 3 | 470p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C93, C94 |
| 3 | 6.2 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R17, R28, R29 |
| 3 | 68 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R15, R24, R26 |
| 3 | 680 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R52, R61, R65 |
| 2 | 0.047u | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C46, C86 |
| 2 | 0.47u | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C3, C6 |
| 2 | 1000u | Diode_THT:D_DO-41_SOD81_P2.54mm_Vertical_AnodeUp | L1, L2 |
| 2 | 100p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C66, C69 |
| 2 | 10K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R47, R55 |
| 2 | 150 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R30, R31 |
| 2 | 1N34/D311 | Diode_THT:D_DO-41_SOD81_P2.54mm_Vertical_AnodeUp | D4, D5 |
| 2 | 2.2K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R34, R53 |
| 2 | 300 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R58, R62 |
| 2 | 47p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C71, C74 |
| 2 | ADE-6 | RF_Mini-Circuits:Mini-Circuits_CD542_LandPatternPL-052 | U3, U4 |
| 2 | T37-6 | Inductor_THT:L_Toroid_Horizontal_D9.5mm_P15.00mm_Diameter10-5mm_Amidon-T37 | L10, L11 |
| 1 | 10 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R50 |
| 1 | 15K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1 |
| 1 | 15p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C8 |
| 1 | 18u | Diode_THT:D_DO-41_SOD81_P2.54mm_Vertical_AnodeUp | L12 |
| 1 | 1Meg | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R51 |
| 1 | 1N4736A | Diode_THT:D_DO-41_SOD81_P2.54mm_Vertical_AnodeUp | D16 |
| 1 | 2.2u | Capacitor_SMD:CP_Elec_4x5.4 | C48 |
| 1 | 2.7K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R3 |
| 1 | 220 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R11 |
| 1 | 220u | Capacitor_SMD:CP_Elec_8x10.5 | C52 |
| 1 | 22u | Capacitor_SMD:CP_Elec_5x5.4 | C87 |
| 1 | 24LC64 | Package_SO:SO-8_5.3x6.2mm_P1.27mm | U2 |
| 1 | 3.9p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C10 |
| 1 | 33p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C19 |
| 1 | 36 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R32 |
| 1 | 47K | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R37 |
| 1 | 5.6p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C11 |
| 1 | 51 | Resistor_SMD:R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R39 |
| 1 | 8p | Capacitor_SMD:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C9 |
| 1 | BS170 | Package_TO_SOT_THT:TO-92_HandSolder | Q12 |
| 1 | BluePill_Left | Connector_PinSocket_2.54mm:PinSocket_1x20_P2.54mm_Vertical | J3 |
| 1 | BluePill_Right | Connector_PinSocket_2.54mm:PinSocket_1x20_P2.54mm_Vertical | J4 |
| 1 | Conn_01x03 | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J5 |
| 1 | FT37-43 | My_Library:Toroid_T37_Vertical_THD_L7.0mm_W6.5mm_P5.00mm | L9 |
| 1 | IRF510 | Package_TO_SOT_THT:TO-220-3_Vertical | Q7 |
| 1 | L7805 | Package_TO_SOT_THT:TO-220-3_Vertical | U1 |
| 1 | L7805 | Package_TO_SOT_SMD:TO-263-2 | U11 |
| 1 | LM386 | Package_SO:SO-8_5.3x6.2mm_P1.27mm | U10 |
| 1 | Logo_Open_Hardware_Small | Symbol:OSHW-Logo2_14.6x12mm_SilkScreen | SYM1 |
| 1 | MMBF170 | Package_TO_SOT_SMD:SOT-23 | Q3 |
| 1 | MMBT3906 | Package_TO_SOT_SMD:SOT-23 | Q4 |
| 1 | NE5532 | Package_SO:SOIC-8_5.23x5.23mm_P1.27mm | U5 |
| 1 | SS14 | Diode_SMD:D_SMA_Handsoldering | D14 |
| 1 | SYM_Radio_Waves_Large | Symbol:KiCad-Logo_5mm_SilkScreen | SYM2 |
| 1 | Si5351_Module | Connector_PinSocket_2.54mm:PinSocket_1x07_P2.54mm_Vertical | J2 |
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Questions
How big is the Ayn-4b PCB?
It measures 114 × 89 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Ayn-4b use?
278 parts, built around the LM386, NE5532, 24LC64(LX) and L7805. 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 Ayn-4b KiCad files?
From the afiskon/ayn-4b repository on GitHub, at the commit this page was made from: the board is kicad-project/ayn-4b.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Ayn-4b design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).