Transistor
About the Transistor PCB
Transistor is an open source PCB design by apxco, published on GitHub. It is a 2-layer board measuring 152.4 × 76.2 mm, with 115 components from 29 distinct parts.
Other key parts include the TL431LP. By type, the board carries 42 connectors, 23 transistors, 23 capacitors, 20 resistors, 4 diodes and 1 IC.
From the project
Zum Testen von einigen Transistorschaltungen für Verstärker. Noch nicht fertig.
Main components on the Transistor
Transistor bill of materials (BOM)
115 components, 29 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TL431LP | TO-92_Inline | U1 |
| 2 | BC337 | TO-92_Inline | Q1, Q4 |
| 5 | BC547 | TO-92_Inline | Q2, Q12, Q16, Q19, Q23 |
| 1 | TIP41 | TO-220-3_Vertical | Q5 |
| 1 | TIP42 | TO-220-3_Vertical | Q6 |
| 3 | 2N7002 | SOT-23 | Q7, Q18, Q22 |
| 1 | BUZ11 | TO-220-3_Vertical | Q9 |
| 1 | IRF9540N | TO-220-3_Vertical | Q10 |
| 5 | BC327 | TO-92_Inline | Q11, Q15, Q17, Q21, Q25 |
| 1 | BC846BS | SOT-363_SC-70-6 | Q13 |
| 1 | BC856BS | SOT-363_SC-70-6 | Q14 |
| 2 | BC847 | SOT-23 | Q20, Q24 |
| 2 | Conn_01x04_Pin | PinHeader_1x04_P1.27mm_Vertical | J1, J3 |
| 8 | Conn_01x40_Pin | PinSocket_1x40_P1.27mm_Vertical | J2, J5, J37, J38, J39, J40, J41, J42 |
| 5 | Conn_01x02_Pin | PinSocket_1x02_P1.27mm_Vertical | J4, J6, J7, J8, J14 |
| 3 | Conn_01x04_Pin | PinSocket_1x04_P1.27mm_Vertical | J9, J10, J11 |
| 5 | Conn_01x35_Pin | PinSocket_1x35_P1.27mm_Vertical | J12, J16, J17, J19, J20 |
| 18 | Conn_01x02_Pin | PinHeader_1x02_P1.27mm_Vertical | J13, J15, J21, J22, J23, J24, J25, J26 +10 |
| 1 | Conn_01x60_Pin | PinSocket_1x35_P1.27mm_Vertical | J18 |
| 1 | R_Potentiometer_Trim | Potentiometer_Bourns_3266Y_Vertical | RV1 |
Show 9 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TestPoint_2Pole | PinHeader_2x01_P1.27mm_Vertical | TP1 |
| 2 | 1N4148W | D_SOD-123 | D1, D2 |
| 2 | 1N5405 | D_DO-201AD_P15.24mm_Horizontal | D3, D4 |
| 21 | C | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C3, C5, C7, C9, C11, C13, C14 +13 |
| 2 | C_Polarized | CP_Elec_6.3x5.9 | C19, C20 |
| 16 | R | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R1, R2, R5, R6, R7, R10, R11, R12 +8 |
| 2 | R | R_2512_6332Metric_Pad1.40x3.35mm_HandSolder | R14, R15 |
| 1 | 1,5k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R20 |
| 1 | 100 | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R21 |
Transistor design files
The KiCad project lives in the apxco/Kicad repository on GitHub; these links point at the commit this page was built from.
Transistor: common questions
How big is the Transistor PCB?
The Transistor measures 152.4 × 76.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Transistor?
115 components, from 29 distinct parts. The full bill of materials is listed on this page.
Where can I download the Transistor design files?
From the apxco/Kicad repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Transistor design in my own project?
The repository has no license, so all rights stay with apxco. Use it as a reference, and ask the author before reusing the design.
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