Deflection board
About the Deflection board
Deflection board is an open source PCB design by Thinkpad4by3, published on GitHub. It is a 2-layer board measuring 100 × 87 mm, with 171 components from 103 distinct parts.
Other key parts include the LM5155DSSR, TLV314QDBVR, PC817, TL431DBZ and AP2204K-5.0. By type, the board carries 53 resistors, 39 capacitors, 32 transistors, 21 connectors, 10 ICs and 9 diodes.
From the project
Electrostatic CRT driver designed from the ground up for performance, versatility and ease-of-manufacturability
The 2nd board is the deflection board, which consists of all the required components to take any sort of vector control X/Y signal and amplify it to the +/- 150V required to move the beam around. This board is compatible with almost every type of ES-CRT, including single ended deflection type tubes. All plates are driven by 300Vpk-pk 500KHz bandwidth amplifiers, where gain/offset can be used to control picture size, and neutral voltage can set for astigmatism. Amplifiers are of a class-AB variety, and are closed loop for minimal distortion, and are powered by their own local bi-polar power…
Main components on the Deflection board
Deflection board bill of materials (BOM)
171 components, 103 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | LM5155DSSR LMH6639 | TSOT-23-6 | U1, U3 |
| 1 | TLV314QDBVR LMH6639 | TSOT-23-6 | U2 |
| 1 | PC817 LMH6639 | TSOT-23-6 | U4 |
| 1 | LM5155DSSR LM5180QNGURQ1 | SON80P400X400X80-9N | U5 |
| 1 | TL431DBZ L78L05_SOT89 | SOT-89-3 | U6 |
| 1 | AP2204K-5.0 L79L05_SOT89 | SOT-89-3 | U7 |
| 1 | AP2204K-5.0 LM5180QNGURQ1 | SON80P400X400X80-9N | U8 |
| 1 | AMC1311 LMH6551MA | SOIC-8_3.9x4.9mm_P1.27mm | U9 |
| 1 | TLV314QDBVR LMH6551MA | SOIC-8_3.9x4.9mm_P1.27mm | U10 |
| 2 | CSD19537Q3 FMMT458TA | SOT-23 | Q1, Q2 |
| 1 | CSD19537Q3 FMMT558TA | SOT-23 | Q3 |
| 1 | STN0214 FMMT558TA | SOT-23 | Q4 |
| 14 | FMMT558TA | SOT-23 | Q5, Q6, Q10, Q12, Q13, Q15, Q18, Q20 +6 |
| 14 | FMMT458TA | SOT-23 | Q7, Q8, Q9, Q11, Q14, Q16, Q17, Q19 +6 |
| 1 | CONN_01X02_PIN Anode | PinHeader_1x01_P2.54mm_Vertical | J1 |
| 1 | A3_EN Y drive | PinHeader_1x01_P2.54mm_Vertical | J2 |
| 1 | C81276 X drive | PinHeader_1x01_P2.54mm_Vertical | J3 |
| 1 | C81276 X1 | PinHeader_1x01_P2.54mm_Vertical | J4 |
| 1 | A3_EN X2 | PinHeader_1x01_P2.54mm_Vertical | J5 |
| 1 | A3_EN Y1 | PinHeader_1x01_P2.54mm_Vertical | J6 |
Show 83 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | C239396 Y2 | PinHeader_1x01_P2.54mm_Vertical | J7 |
| 1 | A3_EN +12V | PinHeader_1x01_P2.54mm_Vertical | J8 |
| 1 | GND | PinHeader_1x01_P2.54mm_Vertical | J9 |
| 1 | ISOLATED 5V | PinHeader_1x01_P2.54mm_Vertical | J10 |
| 1 | ISOLATED_GND | PinHeader_1x01_P2.54mm_Vertical | J11 |
| 1 | ISOLATED -5V | PinHeader_1x01_P2.54mm_Vertical | J12 |
| 1 | ISOLATED 150V | PinHeader_1x01_P2.54mm_Vertical | J13 |
| 1 | ISOLATED -150V | PinHeader_1x01_P2.54mm_Vertical | J14 |
| 1 | GND CONNECT | PinHeader_1x02_P2.54mm_Vertical | J15 |
| 1 | 5V_en | PinHeader_1x02_P2.54mm_Vertical | J16 |
| 1 | -5V_en | PinHeader_1x02_P2.54mm_Vertical | J17 |
| 1 | -150V_en | PinHeader_1x02_P2.54mm_Vertical | J18 |
| 1 | 150V_en | PinHeader_1x02_P2.54mm_Vertical | J19 |
| 1 | 5V_reg_en | PinHeader_1x02_P2.54mm_Vertical | J20 |
| 1 | 150V_reg_en | PinHeader_1x02_P2.54mm_Vertical | J21 |
| 1 | 1MEG 500k | Potentiometer_Bourns_3296W_Vertical | RV1 |
| 2 | 4.7K 5k | Potentiometer_Bourns_3296W_Vertical | RV2, RV4 |
| 2 | 4.7K 47k | Potentiometer_Bourns_3296W_Vertical | RV3, RV5 |
| 1 | 750315839 | WE-FLYLT_EP13_5465 | T1 |
| 1 | 750313974 | WE-FLYLT_EP10_6052 | T2 |
| 2 | CMMR1U-08 | D_SOD-123F | D1, D4 |
| 2 | C5387 CMMR1U-08 | D_SOD-123F | D2, D3 |
| 1 | C5387 D | D_SOD-123 | D5 |
| 1 | C5387 14V | D_SOD-123 | D6 |
| 1 | C5387 45V | D_SOD-123 | D7 |
| 1 | D | D_SOD-123 | D8 |
| 1 | C5387 LED | LED_0805_2012Metric | D9 |
| 1 | 220P 39p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1 |
| 2 | 10U 8p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C2, C3 |
| 2 | 220N 39p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C4, C6 |
| 1 | 100N 8p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5 |
| 1 | 100N 39p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7 |
| 1 | 220N 8p | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C8 |
| 1 | 100N 1u | C_1812_4532Metric_Pad1.57x3.40mm_HandSolder | C9 |
| 1 | 470P 1u | C_1812_4532Metric_Pad1.57x3.40mm_HandSolder | C10 |
| 1 | 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C11 |
| 1 | 220P 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C12 |
| 1 | 47N 47n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C13 |
| 2 | 22N 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C14, C29 |
| 1 | 100P 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C15 |
| 1 | 100N 100u | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C16 |
| 1 | 220N 100u | C_1206_3216Metric_Pad1.33x1.80mm_HandSolder | C17 |
| 1 | 100N 47u | C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C18 |
| 1 | 220N 47u | C_1210_3225Metric_Pad1.33x2.70mm_HandSolder | C19 |
| 1 | 220P 47n | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C20 |
| 2 | 10U 10u | C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C21, C22 |
| 2 | 220N 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C23, C37 |
| 2 | 100N 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C24, C31 |
| 2 | 470P 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C25, C38 |
| 1 | 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C26 |
| 2 | 220P 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C27, C30 |
| 1 | 47N 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C28 |
| 4 | 10U 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C32, C33, C35, C36 |
| 1 | 100U 0.1u | C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C34 |
| 1 | 100u | C_Elec_6.3x7.7 | C39 |
| 2 | 3.9K 2k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R1, R26 |
| 2 | 50K 2k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R2, R27 |
| 2 | 50K 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3, R49 |
| 2 | 100 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R48 |
| 5 | 5k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R5, R7, R25, R28, R33 |
| 4 | 1k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R6, R8, R31, R32 |
| 1 | 200k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R9 |
| 1 | 2k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R10 |
| 2 | 22K 2k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R11, R34 |
| 1 | 100K 200k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R12 |
| 5 | 1MEG 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R13, R14, R37, R38, R45 |
| 1 | 470 5k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R15 |
| 5 | 1MEG 2k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R16, R17, R21, R35, R40 |
| 1 | 1MEG 5k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R18 |
| 2 | 1MEG 1k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R19, R20 |
| 2 | 1MEG 200k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R22, R39 |
| 1 | 4.7K 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R23 |
| 3 | 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R24, R52, R53 |
| 1 | 50K 1k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R29 |
| 1 | 100 1k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R30 |
| 1 | 100K 5k | R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R36 |
| 1 | 1MEG 2.2k | R_0805_2012Metric_Pad1.20x1.40mm_HandSolder | R41 |
| 1 | 1MEG 12.1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R43 |
| 1 | 1MEG 300k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R44 |
| 1 | 470 90k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R46 |
| 1 | 50K 12.1k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R47 |
| 2 | 100 | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R50, R54 |
| 1 | 33K 10k | R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R51 |
Deflection board design files
The KiCad project lives in the Thinkpad4by3/chibitron repository on GitHub; these links point at the commit this page was built from.
Deflection board: common questions
How big is the Deflection board?
The Deflection board measures 100 × 87 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Deflection board?
171 components, from 103 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Deflection board design files?
From the Thinkpad4by3/chibitron repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the Deflection board design in my own project?
The repository has no license, so all rights stay with Thinkpad4by3. Use it as a reference, and ask the author before reusing the design.
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