SLOT	A	B	C	D
1	G921 – PDP-8/L control panel, Schematics
2	M220 Rev. A Rev. B Component Rev. A Rev. B Solder Rev. A Rev. B		M113 Rev. D Component Rev. B Rev. C Solder Rev. B Rev. C	M111 Rev. A Rev. C Component Rev. A Solder Rev. A
3	M220 Rev. A Rev. B Component Rev. A Rev. B Solder Rev. A Rev. B		M700 Rev. D Rev. E Component Rev. A Solder Rev. A
4	M220 Rev. A Rev. B Component Rev. A Rev. B Solder Rev. A Rev. B		M216 Rev. B Rev. C Component Rev. B Solder Rev. B	M115 Rev. D Component Rev. C Solder Rev. C
5	M220 Rev. A Rev. B Component Rev. A Rev. B Solder Rev. A Rev. B		M113 Rev. D Component Rev. B Rev. C Solder Rev. B Rev. C	M310 Rev. B Rev. C Component Rev. A Solder Rev. A
6	M220 Rev. A Rev. B Component Rev. A Rev. B Solder Rev. A Rev. B		M216 Rev. B Rev. C Component Rev. B Solder Rev. B	M310 Rev. B Rev. C Component Rev. A Solder Rev. A
7	M220 Rev. A Rev. B Component Rev. A Rev. B Solder Rev. A Rev. B		M111 Rev. A Rev. C Component Rev. A Solder Rev. A	M310 Rev. B Rev. C Component Rev. A Solder Rev. A
8	M617 Rev. A Rev. C Component Rev. C Solder Rev. C	M617 Rev. A Rev. C Component Rev. C Solder Rev. C	M216 Rev. B Rev. C Component Rev. B Solder Rev. B	M310 Rev. B Rev. C Component Rev. A Solder Rev. A
9	M617 Rev. A Rev. C Component Rev. C Solder Rev. C	M617 Rev. A Rev. C Component Rev. C Solder Rev. C	M115 Rev. D Component Rev. C Solder Rev. C	M160 Rev. D Component Rev. C Solder Rev. C
10	M160 Rev. D Component Rev. C Solder Rev. C	M160 Rev. D Component Rev. C Solder Rev. C	M119 Rev. C Component Rev. X Solder Rev. X	-
11	M115 Rev. D Component Rev. C Solder Rev. C	M216 Rev. B Rev. C Component Rev. B Solder Rev. B	M117 Rev. E Component Rev. C Solder Rev. C	-
12	M160 Rev. D Component Rev. C Solder Rev. C	M111 Rev. A Rev. C Component Rev. A Solder Rev. A	M115 Rev. D Component Rev. C Solder Rev. C	M113 Rev. D Component Rev. B Rev. C Solder Rev. B Rev. C
13	M160 Rev. D Component Rev. C Solder Rev. C	M113 Rev. D Component Rev. B Rev. C Solder Rev. B Rev. C	M117 Rev. E Component Rev. C Solder Rev. C	M111 Rev. A Rev. C Component Rev. A Solder Rev. A
14	M115 Rev. D Component Rev. C Solder Rev. C	M119 Rev. C Component Rev. X Solder Rev. X	M113 Rev. D Component Rev. B Rev. C Solder Rev. B Rev. C	M310 Rev. B Rev. C Component Rev. A Solder Rev. A
15	-	-	M113 Rev. D Component Rev. B Rev. C Solder Rev. B Rev. C	M310 Rev. B Rev. C Component Rev. A Solder Rev. A
16	-	-	-	M216 Rev. B Rev. C Component Rev. B Solder Rev. B
17	-	-	M360 Rev. B Component Rev. B Solder Rev. B	M617 Rev. A Rev. C Component Rev. C Solder Rev. C
18	G020 Rev. E Rev. H Component Rev. G021D Solder Rev. G021D	G020 Rev. H Component Rev. G021D Solder Rev. G021D	G221 Rev. A Rev. B Component Rev. A Rev. B Solder Rev. A Rev. B	G221 Rev. A Rev. B Component Rev. A Rev. B Solder Rev. A Rev. B
19	G020 Rev. H Component Rev. G021D Solder Rev. G021D	G020 Rev. H Component Rev. G021D Solder Rev. G021D	G221 Rev. A Rev. B Component Rev. A Rev. B Solder Rev. A Rev. B	G221 Rev. A Rev. B Component Rev. A Rev. B Solder Rev. A Rev. B
20	G020 Rev. H Component Rev. G021D Solder Rev. G021D	G020 Rev. H Component Rev. G021D Solder Rev. G021D	G610
21	W825		Memory Stack
22	W825		G611
23	G228 Rev. H Component Rev. X Solder Rev. X	G228 Rev. H Component Rev. X Solder Rev. X	G221 Rev. A Rev. B Component Rev. A Rev. B Solder Rev. A Rev. B	G221 Rev. A Rev. B Component Rev. A Rev. B Solder Rev. A Rev. B
24	-	G228 Rev. H Component Rev. X Solder Rev. X	G221 Rev. A Rev. B Component Rev. A Rev. B Solder Rev. A Rev. B	G221 Rev. A Rev. B Component Rev. A Rev. B Solder Rev. A Rev. B
25	G624 Rev. C Component Rev. C Solder Rev. C	G624 Rev. C Component Rev. C Solder Rev. C	G228 Rev. H Component Rev. X Solder Rev. X	G228 Rev. H Component Rev. X Solder Rev. X
26	G624 Rev. C Component Rev. C Solder Rev. C	G624 Rev. C Component Rev. C Solder Rev. C	M002 Rev. A Component Rev. A Solder Rev. A	-
27	G826 Rev. D Rev. K Component Rev. D Solder Rev. D		M623 Rev. A Rev. DE Component Rev. A Rev. A Mod. Solder Rev. A Rev. A Mod.	M623 Rev. A Rev. DE Component Rev. A Rev. A Mod. Solder Rev. A Rev. A Mod.
28	G785 Rev. D		M115 Rev. D Component Rev. C Solder Rev. C	M623 Rev. A Rev. DE Component Rev. A Rev. A Mod. Solder Rev. A Rev. A Mod.
29	-	-	M660 Rev. A Rev. B Component Rev. A Solder Rev. A	M906 Rev. AB Component Rev. A Solder Rev. A
30	-	-	M660 Rev. A Rev. B Component Rev. A Solder Rev. A	M906 Rev. AB Component Rev. A Solder Rev. A
31	-	-	M707 Rev. C Rev. D Component Rev. D Solder Rev. D
32	M516 Rev. A Component Rev. A Solder Rev. A	M906 Rev. AB Component Rev. A Solder Rev. A	M706 Rev. D Rev. K Component Rev. D Solder Rev. D
33	M516 Rev. A Component Rev. A Solder Rev. A	-	M452 Rev. A Component Rev. A Solder Rev. A	W076 TTY-cable Component Solder
34	-	-	-	-
35	M111 Rev. A Rev. C Component Rev. A Solder Rev. A	-	-	-
36	-	-	-	-