Difference between revisions of "PDP-8 Front Panel Assembly Sheet"
Jump to navigation
Jump to search
Blwikiadmin (talk | contribs) (→Notes) |
Blwikiadmin (talk | contribs) (→Notes) |
||
| Line 43: | Line 43: | ||
== Notes == | == Notes == | ||
| − | # I used orange clear LEDS but orange diffused body LEDs might be better. | + | # I used orange clear LEDS but [https://www.ebay.com/itm/381087033256 orange diffused body LEDs] might be better. |
# 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. | ||
# Pick whatever height button you like. I used 9mm tall which is pretty tall but it's what I had sitting around. | # Pick whatever height button you like. I used 9mm tall which is pretty tall but it's what I had sitting around. | ||
[[File:PDP-8_P458-720pxV.jpg]] | [[File:PDP-8_P458-720pxV.jpg]] | ||
Revision as of 12:24, 28 May 2021
Parts List
| Qty | Value | RefDes | Qty | Value | RefDes | |
|---|---|---|---|---|---|---|
| 19 | LED, 5mm, Orange
Note 1 |
D1-D19 | 1 | Header, Rt Angle, 0.1", 2x25 | J1 | |
| 19 | Res, 1K, 1/4W
Note 2 |
R1-R19 | 7 | Switch, Pushbutton, 6mm
Note 3 |
SW10-SW16 | |
| 21 | Res, 10K, 1/4W | R20-R41 | 14 | SW_SPDT, 3 pin, 0.1" | SW1-SW9,SW17-SW21 |
Notes
- I used orange clear LEDS but orange diffused body LEDs might be better.
- 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.
- Pick whatever height button you like. I used 9mm tall which is pretty tall but it's what I had sitting around.
