Betsubetsu
About the Betsubetsu PCB
Betsubetsu is an open source PCB design by buffis, published on GitHub under the CC-BY-4.0 license. It is a 2-layer board measuring 110.6 × 77.9 mm, with 37 components from 20 distinct parts.
Other key parts include the THS7374. By type, the board carries 14 capacitors, 9 resistors, 7 connectors, 1 IC, 1 transformer and 1 diode.
From the project
BetsuBetsu is an Open Source Audio+Video splitter for streaming/recording video from Arcade games (Jamma).
BetsuBetsu is an Open Source Audio+Video splitter for streaming/recording video from Arcade games (Jamma).
It plugs in between the game and cabinet, and can then be connected to any upscaler + PC for streaming/recording.
- Order a pcb. Kicad plot files are in the plot/ subdir in the repo. - Order all parts needed (see BOM) - Solder it up (suggested order below) - Start with THS7374. It's the trickiest footprint to solder. - Then do all 0805-sized parts in any order. - Solder all five big capacitors. Note that the bottom one is 100uF - Solder all trimpots - Solder the transformer + output…
Main components on the Betsubetsu
Betsubetsu bill of materials (BOM)
37 components, 20 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | THS7374 | TSSOP-14_4.4x5mm_P0.65mm | U1 |
| 1 | Jamma Out (Cab) | JAMMA-56 | J1 |
| 1 | VIDEO OUT | MD-80SM | J2 |
| 1 | AUDIO OUT | Jack_3.5mm_CUI_SJ1-3533NG_Horizontal | J3 |
| 1 | Jamma In (Game) | JAMMA-56 | J4 |
| 1 | V Meter | PinHeader_1x02_P2.54mm_Vertical | J5 |
| 1 | Conn_01x17 | PinHeader_1x17_P2.00mm_Vertical | J6 |
| 1 | 5V | PinHeader_1x02_P2.54mm_Vertical | J7 |
| 3 | 1K | Potentiometer_Bourns_3386P_Vertical | RV1, RV2, RV3 |
| 1 | 500 | Potentiometer_Bourns_3386P_Vertical | RV4 |
| 1 | TY-250P | TY250P | T1 |
| 1 | LED | LED_0805_2012Metric_Pad1.15x1.40mm_HandSolder | D1 |
| 1 | 100u | CP_Elec_8x6.7 | C1 |
| 9 | 0.1u | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C2, C3, C4, C5, C6, C8, C10, C12 +1 |
| 4 | 470u | CP_Elec_8x6.7 | C7, C9, C11, C13 |
| 1 | 1k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1 |
| 1 | 150 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2 |
| 2 | 390 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R3, R4 |
| 1 | 47 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R5 |
| 4 | 75 | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R6, R7, R8, R9 |
Betsubetsu design files
The KiCad project lives in the buffis/betsubetsu repository on GitHub; these links point at the commit this page was built from.
- Layoutbetsubetsu.kicad_pcb
Betsubetsu: common questions
How big is the Betsubetsu PCB?
The Betsubetsu measures 110.6 × 77.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Betsubetsu?
37 components, from 20 distinct parts. The full bill of materials is listed on this page.
Where can I download the Betsubetsu design files?
From the buffis/betsubetsu repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Betsubetsu design in my own project?
Yes, under the terms of its CC-BY-4.0 license, which buffis chose for the repository.