sdylewski/Analog-Redial46A circuit board for old telephones to come back to life. Plug one or two phones in, and you can call the other phone, use bluetooth, connect to others via voip, and do a variety of other things with a plain old rotary or touch-tone phone. There's a nice web interface also!
Payphone v1 is an open-source printed circuit board by sdylewski, from the sdylewski/Analog-Redial repository on GitHub. It is a 2-layer board of 155 × 70 mm with 137 parts on 81 nets, routed with 519 tracks and 91 vias.
It is built around the MC34063ADR2G-TP, ADS1115 and B5819W, with the ES2D, STN4NF20L and 1N4148W among its other parts. Its parts include 52 resistors, 22 capacitors, 19 diodes, 12 connectors and 6 transistors.
These are the KiCad files for the v5 boards that were actually built: the board file is the 2026-10-05 07:00 save that produced the fab package, and the schematic and project file match it. Nothing here has been changed since, so it stays a faithful record of what is on the first v5 boards.
Analog Redial v5 - as sent to fab 2026-10-05.zip
(Gerbers, drill files, bill of materials, positions and netlist, exported
for PCBWay).docs/board.md). The genuine 32-pin DevKitC-1 is not affected.../Analog Redial v5.1/: this board with the
clone 5V-pin footprint fixed, plus small silkscreen and fab-file updates
(JLCPCB export included). Not built yet. Edit and re-export from v5.1, not
from here.19def2e as Analog Redial 5.*; it was not what
was fabbed.| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 100nF | Capacitor_SMD:C_0805_2012Metric | C2, C3, C4, C6, C16, C17, C18, C19, C24, C25, Cvref1, Cz1 |
| 11 | 10k | Resistor_SMD:R_0805_2012Metric | R1, R4, R5, R6, R14, R19, R23, R25, R49, R52, R53 |
| 9 | 1k | Resistor_SMD:R_0805_2012Metric | R7, R8, R9, R20, R21, R24, R44, R50, Rf1 |
| 7 | 1.5k | Resistor_SMD:R_0805_2012Metric | R34, R35, R36, R37, R38, R39, R51 |
| 7 | green | LED_SMD:LED_0805_2012Metric | D8, D9, D10, D11, D12, D13, D15 |
| 4 | 100uF 50V | Capacitor_SMD:CP_Elec_8x10 | C5, C7, C14, C20 |
| 4 | 1M | Resistor_SMD:R_1206_3216Metric | R32, Rbl1, Rbl2, Rbl3 |
| 4 | B5819W | Diode_SMD:D_SOD-123 | D16, D17, D18, D19 |
| 4 | MountingHole_M3 | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 100R | Resistor_SMD:R_0805_2012Metric | R40, R41, Rg1 |
| 3 | 100k | Resistor_SMD:R_0805_2012Metric | R2, R3, Rfbb3 |
| 3 | 100k | Resistor_SMD:R_1206_3216Metric | Rfbt1, Rfbt2, Rfbt3 |
| 3 | 100nF 50V | Capacitor_SMD:C_1206_3216Metric | C21, C22, C23 |
| 3 | 1R | Resistor_SMD:R_1206_3216Metric | R11, R45, R46 |
| 3 | 4.7k | Resistor_SMD:R_0805_2012Metric | R22, R42, R43 |
| 3 | PINHD_1x2_Male | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J7, J8, J9 |
| 2 | 1nF | Capacitor_SMD:C_0805_2012Metric | C8, Cslope1 |
| 2 | 27k | Resistor_SMD:R_0805_2012Metric | R33, Rslope1 |
| 2 | 2N7002 | Package_TO_SOT_SMD:SOT-23 | Q1, Q4 |
| 2 | 33k | Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R27, R28 |
| 2 | ES2D | Diode_SMD:D_SMA | D2, D14 |
| 2 | STN4NF20L | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | Q3, Qa1 |
| 1 | 1.1A PTC | Fuse:Fuse_1812_4532Metric | F1 |
| 1 | 100R | Resistor_SMD:R_1206_3216Metric | R12 |
| 1 | 100nF 50V | Capacitor_SMD:C_0805_2012Metric | Cvcc1 |
| 1 | 100pF | Capacitor_SMD:C_0805_2012Metric | Cp1 |
| 1 | 100uH SMDRI127-101MT | Inductor_SMD:L_SXN_SMDRI127 | L1 |
| 1 | 10R | Resistor_SMD:R_1206_3216Metric | R26 |
| 1 | 12k | Resistor_SMD:R_0805_2012Metric | R18 |
| 1 | 150k | Resistor_SMD:R_0805_2012Metric | R13 |
| 1 | 15k | Resistor_SMD:R_0805_2012Metric | Rfbb4 |
| 1 | 1M | Resistor_SMD:R_0805_2012Metric | Rz1 |
| 1 | 1N4148W | Diode_SMD:D_SOD-123 | D4 |
| 1 | 1SMA4744A (15V 1W) | Diode_SMD:D_SMA | Dz1 |
| 1 | 2-coil | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J10 |
| 1 | 2.2R | Resistor_SMD:R_0805_2012Metric | Rcs1 |
| 1 | 2.2nF | Capacitor_SMD:C_0805_2012Metric | Ct1 |
| 1 | 220uF/200V | Capacitor_THT:CP_Radial_D18.0mm_P7.50mm | C1 |
| 1 | 220uH SMDRI127-221MT | Inductor_SMD:L_SXN_SMDRI127 | L2 |
| 1 | 22k | Resistor_SMD:R_0805_2012Metric | Rfbb1 |
| 1 | 30k | Resistor_SMD:R_0805_2012Metric | Rfbb2 |
| 1 | 470pF | Capacitor_SMD:C_0805_2012Metric | Cf1 |
| 1 | 56k | Resistor_SMD:R_0805_2012Metric | R17 |
| 1 | ADS1115 | Custom:ADS1115 Module | U4 |
| 1 | AIN3 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J13 |
| 1 | BZT52C12 | Diode_SMD:D_SOD-123 | D6 |
| 1 | BZT52C22 | Diode_SMD:D_SOD-123 | D5 |
| 1 | G6S-2 | Relay_THT:Relay_DPDT_Omron_G6S-2 | K1 |
| 1 | HV boost | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J14 |
| 1 | JST_05 | Connector_JST:JST_EH_B5B-EH-A_1x05_P2.50mm_Vertical | J1 |
| 1 | LED red | LED_SMD:LED_0805_2012Metric | D7 |
| 1 | MC34063ADR2G | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | MKDS 1,5/3-5,08 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-3-5.08_1x03_P5.08mm_Horizontal | J11 |
| 1 | MKDS 1,5/5-5,08 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-5-5.08_1x05_P5.08mm_Horizontal | J12 |
| 1 | MMBT3904 | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | MMBT3906 | Package_TO_SOT_SMD:SOT-23 | Q5 |
| 1 | Molex_26-60-4030 | Connector_Molex:Molex_KK-396_A-41791-0003_1x03_P3.96mm_Vertical | J2 |
| 1 | Molex_26-60-4040 | Connector_Molex:Molex_KK-396_A-41791-0004_1x04_P3.96mm_Vertical | J3 |
| 1 | PINHD_1x5_Male | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J6 |
| 1 | SMBJ130A | Diode_SMD:D_SMB | D3 |
| 1 | SS34 | Diode_SMD:D_SMA | D1 |
| 1 | TCA9534APWR | Package_SO:TSSOP-16_4.4x5mm_P0.65mm | U1 |
| 1 | UC3843BD1R2G | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U3 |
| 1 | VIO=5V | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
sdylewski/Analog-Redial
A circuit board for old telephones to come back to life. Plug one or two phones in, and you can call the other phone, use bluetooth, connect to others via voip, and do a variety of other things with a plain old rotary…
sdylewski/Analog-Redial
A circuit board for old telephones to come back to life. Plug one or two phones in, and you can call the other phone, use bluetooth, connect to others via voip, and do a variety of other things with a plain old rotary…
sdylewski/Analog-Redial
A circuit board for old telephones to come back to life. Plug one or two phones in, and you can call the other phone, use bluetooth, connect to others via voip, and do a variety of other things with a plain old rotary…
sdylewski/Analog-Redial
A circuit board for old telephones to come back to life. Plug one or two phones in, and you can call the other phone, use bluetooth, connect to others via voip, and do a variety of other things with a plain old rotary…
sdylewski/Analog-Redial
A circuit board for old telephones to come back to life. Plug one or two phones in, and you can call the other phone, use bluetooth, connect to others via voip, and do a variety of other things with a plain old rotary…
sdylewski/Analog-Redial
A circuit board for old telephones to come back to life. Plug one or two phones in, and you can call the other phone, use bluetooth, connect to others via voip, and do a variety of other things with a plain old rotary…
sdylewski/Analog-Redial
A circuit board for old telephones to come back to life. Plug one or two phones in, and you can call the other phone, use bluetooth, connect to others via voip, and do a variety of other things with a plain old rotary…
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It measures 155 × 70 mm and has 2 copper layers, 1.6 mm thick.
137 parts, built around the MC34063ADR2G-TP, ADS1115, B5819W and ES2D. 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 sdylewski/Analog-Redial repository on GitHub, at the commit this page was made from: the board is PayPhone/Payphone_v1/Payphone_v1.kicad_pcb and its schematic Bluetooth/BM64/BM64_Board_v1/Bluetooth_board.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 sdylewski before reusing the design.