
DoubleROM
monotech/ISA-DoubleROM
ISA card to provide up to two writeable option-ROM sockets.

Tone generator
Tgn is an open-source printed circuit board by 0x007E, from the 0x007E/tgn repository on GitHub. It is a 2-layer board of 110.7 × 74.7 mm with 92 parts on 86 nets, routed with 414 tracks and 86 vias.
It is built around the LM386, 74LS193P-E and 74LS33PC, with the NA555P, BS170 and SB360 among its other parts. Its parts include 31 resistors, 22 capacitors, 12 connectors, 11 ICs and 2 diodes.
| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 100n | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C7, C8, C9, C10, C11, C12, C13, C14, C15, C16 |
| 9 | 2k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R20, R21, R22, R23, R24, R25, R26, R27, R28 |
| 8 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R12, R13, R14, R15, R16, R17, R18, R19 |
| 6 | 100u | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C1, C2, C3, C4, C5, C6 |
| 5 | 3k3 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R4, R5, R29, R30 |
| 5 | 4k7 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2, R6, R7, R9, R10 |
| 5 | 74LS193 | Package_DIP:DIP-16_W7.62mm_Socket_LongPads | U4, U5, U6, U7, U8 |
| 5 | Screw_Terminal_01x02 | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | J1, J5, J7, J8, J9 |
| 3 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2, J3, J4 |
| 3 | Conn_01x03_Pin | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J6, J11, J12 |
| 2 | 10n | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C17, C18 |
| 2 | 10u | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C19, C22 |
| 2 | 270 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8, R11 |
| 2 | BS170 | Package_TO_SOT_THT:TO-92_Wide | Q1, Q2 |
| 2 | MountingHole_Pad | MountingHole:MountingHole_3.2mm_M3_Pad | H1, H2 |
| 2 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP2 |
| 1 | 10 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R31 |
| 1 | 10k | Potentiometer_THT:Potentiometer_Piher_PT-10-V10_Vertical | RV2 |
| 1 | 10k | Potentiometer_THT:Potentiometer_Bourns_3296W_Vertical | RV1 |
| 1 | 220 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 370u | Capacitor_THT:CP_Radial_D8.0mm_P3.50mm | C20 |
| 1 | 47n | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P2.50mm | C21 |
| 1 | 74LS01 | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U3 |
| 1 | 74LS33 | Package_DIP:DIP-14_W7.62mm_Socket_LongPads | U2 |
| 1 | Conn_01x08_Pin | Connector_PinSocket_2.54mm:PinSocket_1x08_P2.54mm_Vertical | J10 |
| 1 | ESD | Symbol:ESD-Logo_6.6x6mm_SilkScreen | FID1 |
| 1 | F1.6A | Fuse_HTL:Fuse_20mm_HTL | F1 |
| 1 | Green | LED_THT:LED_D5.0mm | D2 |
| 1 | LM386 | Package_DIP:DIP-8_W7.62mm_Socket_LongPads | U11 |
| 1 | NA555P | Package_DIP:DIP-8_W7.62mm_Socket_LongPads | U9 |
| 1 | OH | Symbol:OSHW-Logo_5.7x6mm_SilkScreen | FID3 |
| 1 | QR | Images:QR_0x007e_small | FID4 |
| 1 | SB360 | Diode_THT:D_DO-201_P15.24mm_Horizontal | D1 |
| 1 | SST39SF040 | Package_DIP:DIP-32_W15.24mm_LongPads | U10 |
| 1 | Speaker | TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-2-5.08_1x02_P5.08mm_Horizontal | LS1 |
| 1 | Waste | Symbol:WEEE-Logo_4.2x6mm_SilkScreen | FID2 |
| 1 | uA7805 | Package_TO_SOT_THT:TO-220-3_Vertical | U1 |
It measures 110.7 × 74.7 mm and has 2 copper layers, 1.6 mm thick.
92 parts, built around the LM386, 74LS193P-E, 74LS33PC and NA555P. 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 0x007E/tgn repository on GitHub, at the commit this page was made from: the board is pcb/TGN.kicad_pcb and its schematic pcb/TGN.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 0x007E before reusing the design.

monotech/ISA-DoubleROM
ISA card to provide up to two writeable option-ROM sockets.

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