mbhp_genesis
Differences
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mbhp_genesis [2017/08/13 14:55] sauraen [Construction differences by sound chip type] |
mbhp_genesis [2017/08/18 21:11] sauraen [Parts list] |
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| | 1 | Y2 or Y4 | 3.58 MHz (or 4 MHz) oscillator | 520-TCH357-X | Oscillator (either half-size/8-DIP or 5x7mm SMD) at desired PSG frequency. MIDIbox Genesis firmware will correct frequencies to match original VGM pitch. | | | 1 | Y2 or Y4 | 3.58 MHz (or 4 MHz) oscillator | 520-TCH357-X | Oscillator (either half-size/8-DIP or 5x7mm SMD) at desired PSG frequency. MIDIbox Genesis firmware will correct frequencies to match original VGM pitch. | | ||
| | 3 | Q1, Q2, Q3 | 2N7000 or BS170 | 821-TSM2N7000KC821-T or 512-BS170 | Any small-signal N-channel MOSFET with the gate as the center pin; the board silkscreen is for 2N7000, if you use BS170 (as I did) mount them backwards to match the source and drain pins. | | | 3 | Q1, Q2, Q3 | 2N7000 or BS170 | 821-TSM2N7000KC821-T or 512-BS170 | Any small-signal N-channel MOSFET with the gate as the center pin; the board silkscreen is for 2N7000, if you use BS170 (as I did) mount them backwards to match the source and drain pins. | | ||
| - | | - | J1, J2, J5, J6, J7, J8 | 0.1" pin headers | Buy in bulk | Headers; J1, J2, and J7 connect all boards together, so put sockets on one side of the boards and have the pins sticking through on the other sides. J5 and J6 are individual on each board if used, and J8 is only on the final board. | | + | | - | J1, J2, J7, J10 | 0.1" stackable pin socket/headers | 782-A000086 | Pin sockets with long pins (from Arduino shields), for stacking the boards together. Buy in bulk and combine them for the appropriate sizes. Use a regular pin header for the lowest board in the stack; have each header mounted with the socket below the board and the pins sticking out the top. See this photo of the stack. | |
| + | | - | J5, J6, J8 | 0.1" pin headers | Buy in bulk | Headers; J5 and J6 are individual on each board if used, and J8 is only on the final board. | | ||
| | - | J10 | 0.1" dual row pin headers | Buy in bulk | Headers; J10 connects all boards together, so put sockets on one side of the boards and have the pins sticking through on the other sides. | | | - | J10 | 0.1" dual row pin headers | Buy in bulk | Headers; J10 connects all boards together, so put sockets on one side of the boards and have the pins sticking through on the other sides. | | ||
| | 1 | L1 | 10 uH inductor | 434-SMCCN-100K-02 | For LC filter for analog power rail | | | 1 | L1 | 10 uH inductor | 434-SMCCN-100K-02 | For LC filter for analog power rail | | ||
mbhp_genesis.txt · Last modified: 2023/09/05 04:19 by sauraen
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