Difference between revisions of "PDP-8 Front Panel Assembly Sheet"
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# I used 1K because modern LEDs are really efficient and can get uncomfortably bright with higher current. Vcc is 3.3V, Orange LED drops ~1.8V. Leaves 1.4V across resistor. Equals 1.4 mA with 1K resistor. | # I used 1K because modern LEDs are really efficient and can get uncomfortably bright with higher current. Vcc is 3.3V, Orange LED drops ~1.8V. Leaves 1.4V across resistor. Equals 1.4 mA with 1K resistor. | ||
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Revision as of 13:16, 22 May 2021
Parts List
| Qty | Value | RefDes | Qty | Value | RefDes | |
|---|---|---|---|---|---|---|
| 19 | LED, 5mm, Orange | D1-D19 | 1 | Header, Rt Angle, 0.1", 2x25 | J1 | |
| 19 | Res, 1K, 1/4W
Note 1 |
R1-R19 | 7 | Switch, Pushbutton, 6mm | SW10-SW16 | |
| 21 | Res, 10K, 1/4W | R20-R41 | 14 | SW_SPDT, 3 pin, 0.1" | SW1-SW9,SW17-SW21 |
Notes
- I used 1K because modern LEDs are really efficient and can get uncomfortably bright with higher current. Vcc is 3.3V, Orange LED drops ~1.8V. Leaves 1.4V across resistor. Equals 1.4 mA with 1K resistor.
