Difference between revisions of "PDP-8 Front Panel Assembly Sheet"

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Line 13: Line 13:
 
|-
 
|-
 
| 19
 
| 19
| LED-fixed
+
| LED, 5mm, Orange
 +
(Note 1)
 
| D1-D19
 
| D1-D19
 
|  
 
|  
 
| 1
 
| 1
| Conn, Rt Angle, 2x25
+
| Header, Rt Angle, 0.1", 2x25
 
| J1
 
| J1
 
|-
 
|-
 
| 19
 
| 19
| 560
+
| Res, 1K, 1/4W
 +
(Note 2)
 
| R1-R19
 
| R1-R19
 
|  
 
|  
 
| 7
 
| 7
| SW_Push
+
| Switch, Pushbutton, 6mm
 +
(Note 3)
 
| SW10-SW16
 
| SW10-SW16
 
|-
 
|-
 
| 21
 
| 21
| 10K
+
| Res, 10K, 1/4W
 
| R20-R41
 
| R20-R41
 
|  
 
|  
 
| 14
 
| 14
| SW_SPDT
+
| Slide Switch, SS12D00G3
 +
([https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2334524.m570.l1313&_nkw=slide+switch+ss12d00g3&_sacat=0&LH_TitleDesc=0&LH_FS=1&_odkw=slide+switch+ss12d00g4&_osacat=0&_sop=15 ebay])
 +
([https://www.amazon.com/s?k=SS12D00G3&i=industrial&ref=nb_sb_noss amazon])
 +
(NOTE 4)
 
| SW1-SW9,SW17-SW21
 
| SW1-SW9,SW17-SW21
 
|-
 
|-
 
|}
 
|}
 +
 +
== Notes ==
 +
 +
# Select LED color.  I used [https://www.ebay.com/itm/123897764301?var=425000887144 orange clear LEDS] but [https://www.ebay.com/itm/381087033256 orange diffused body LEDs] are better since clear LEDs reflect background light.
 +
# LED ballast 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.
 +
# 0.1" pins. Select either [https://www.ebay.com/sch/i.html?_from=R40&_trksid=p2047675.m570.l1313&_nkw=SS12D00G3&_sacat=0 SS12D00G3 3 pin slide switch] or 3 pin headers.
 +
 +
 +
[[File:PDP-8_P458-720pxV.jpg]]

Latest revision as of 13:30, 25 May 2022

PDP-8 Front Back.png

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 Slide Switch, SS12D00G3
(ebay)
(amazon)
(NOTE 4)
SW1-SW9,SW17-SW21

Notes

  1. Select LED color. I used orange clear LEDS but orange diffused body LEDs are better since clear LEDs reflect background light.
  2. LED ballast 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.
  3. Pick whatever height button you like. I used 9mm tall which is pretty tall but it's what I had sitting around.
  4. 0.1" pins. Select either SS12D00G3 3 pin slide switch or 3 pin headers.


PDP-8 P458-720pxV.jpg