Board

Property	Value
Size	302 mm × 247 mm
Thickness	1.6 mm
Track widths	2.4 mm, 1.4 mm, 0.6 mm, 0.25 mm
Pad sizes	See below.

Pads

Pad Type	Count	Pad Diam	Drill Diam
Via	1036	1.4 mm	0.8 mm
Circular - normal	2115	1.6 mm	1.0 mm
Circular - large	9	2.8 mm	2.0 mm
Square	445	1.6 mm	1.0 mm
Rounded square	1	1.6 mm	1.0 mm

Components

Integrated Circuits - E (101)

ID	Value	Value Ref 1	Value Ref 2	Comments
E1	LS123	SN74LS123N	SN74LS123N
E2	LS14	74LS14N	SN74LS14N
E3	S74	DM74S74N	DM74S74N
E4	S04	EL74S04	DM74S04J
E5	LS244	T74LS244B1	T74LS244B1
E6	LS244	74LS244N	T74LS244B1
E7	LS244	T74LS244B1	SN74LS244J
E8	LS244	T74LS244B1	SN74LS244J
E9	LS05	SN74LS05J	SN74LS05N
E10	LS30	T74LS30B1	T74LS30B1
E11	LS74	SN74LS74AN	SN74LS74AN
E12	LS244	SN74LS244N	T74LS244B1
E13	LS244	SN74LS244N	T74LS244B1
E14	LS367	SN74LS367AN	SN54LS367AJ
E15	LS244	74LS244N	SN74LS244B1
E16	LS367	SN54LS367AJ	SN54LS367AJ
E17	LS244	T74LS244B1	T74LS244B1
E18	LS244	T74LS244B1	T74LS244B1
E19	LS244	74LS244N	SN74LS244J
E20	LS244	74LS244N	SN74LS244J
E21	LS04	74LS04 PC	SN74LS04N
E22	LS04	DM74LS04N	SN74LS04N
E23	LS08	SN74LS08N	SN74LS08N
E24	LS08	SN74LS08N	SN74LS08N
E25	7404	7404PC	SN7404 J
E26	LS38	T74LS38B1	T74LS38B1
E27	LS38	T74LS38B1	T74LS38B1
E28	LS38	T74LS38B1	T74LS38B1
E29	LS244	74LS244N	T74LS244B1
E30	Z80A SIO/1	ZILOG Z84??BPS Z80? SIO/1 8338 W	ZILOG Z8881BPS Z80B SIO/1 8449
E32	Z80A CPU	MOSTEK TC8639 MK3880N-4 Z80-CPU	MOSTEK TC8639 MK3880N-4 Z80-CPU
E33	Z80A DMA	Z8410AB1 Z80ADMA 28618	Z8410AB1 Z80ADMA 28548
E34	LS32	SN74LS32N	SN74LS32N
E35	MM58167A	MM58167AN	+B8612 MM58167AN
E36	LS04	DM74LS04N	SN74LS04N
E37	LS04	DM7404N	SN74LS04N
E38	LS32	(SN74LS32...)	SN74LS32N
E39	LS244	74LS244N	T74LS244B1
E40	LS42	HD74LS42P	HD74LS42P
E41	LS32	SN74LS32N	SN74LS32N
E42	LS14	74LS14N	SN74LS14N
E43	MC1488	MC1488P T8444	MC1488P RQ8326
E44	MC1488	MC1488P RQ8319	MC1488P RQ8321
E45	MC1489	MC1489P K8539	406C MC1489A 75189AN
E46	LS32	SN74LS32N	SN74LS32N
E47	LS08	SN74LS08N	SN74LS08N
E48	WD1691	WD1691PE 8348	WD1691PE-00 8421 02
E49	LS157	SN74LS157N	SN74LS157N
E51	M2716			EPROM.
E52	MC1489	406C MC1489A 75189AN	406C MC1989A 75189AN
E53	MC1489	406C MC1489A 75189AN	406C MC1989A 75189AN
E54	LS32	SN74LS32N	SN74LS32N
E55	LS20	SN74LS20N	DM74LS20N
E56	D765	8624KD D765AC-2	8350K6 FDC765AC
E57	WD2143	WD2143-PD 03-15 8706	WD2143M-03 8217
E58	LS123	SN74LS123N	SN74LS123N
E59	M3764A-15	M3764A-15 65518	M3764A-15 65516
E60	M3764A-15	M3764A-15 65518	M3764A-15 65518
E61	M3764A-15	M3764A-15 65518	M3764A-15 65518
E62	M3764A-15	M3764A-15 65518	M3764A-15 65518
E64	MC14411	MC14411 P QR8610	MC14411 P QR8610
E65	LS374	74LS374N	74LS374N
E66	LS244	74LS244N	T74LS244B1
E67	Z80A CTC	ZILOG Z8430APE Z80A CTC 8342	MOSTEK 8502 MK3882N Z80 CTC
E68	LS138	74LS138PC	SN74LS138N
E69	LS138	SN74LS138N	74LS138N
E70	LS629	SN74LS629N	SN74LS629N
E71	M3764A-15	M3764A-15 65518	M3764A-15 65516
E72	M3764A-15	M3764A-15 65518	M3764A-15 65518
E73	M3764A-15	M3764A-15 65518	M3764A-15 65518
E74	M3764A-15	M3764A-15 65518	M3764A-15 65518
E77	LS08	74LS08 PC	SN74LS08N
E78	LS10	EL74LS10J	EL74LS10J
E79	LS30	T74LS30B1	T74LS30B1
E80	LS04	DM74LS04N	SN74LS04N
E81	LS01	SN74LS01N	SN74LS01N
E82	S04	EL74S04	DM74S04J
E83	LS74	SN74LS74AN	SN74LS74AN
E84	LS08	74LS08 PC	SN74LS08N
E85	M3764A-15	M3764A-15 65518	M3764A-15 65516
E86	M3764A-15	M3764A-15 65518	M3764A-15 65518
E87	M3764A-15	M3764A-15 65518	M3764A-15 65518
E88	M3764A-15	M3764A-15 65518	M3764A-15 65518
E91	LS32	74LS32 PC	SN74LS32N
E92	LS30	T74LS30B1	T74LS30B1
E93	LS30	T74LS30B1	T74LS30B1
E94	LS04	DM74LS04N	SN74LS04N
E95	LS132	74LS132NB	T74LS132B1
E96	LS393	DM74LS393N	SN74LS393N
E97	LS157	SN74LS157N	SN74LS157N
E98	M3764A-15	M3764A-15 65518	M3764A-15 65516
E99	M3764A-15	M3764A-15 65518	M3764A-15 65516
E100	M3764A-15	M3764A-15 65518	M3764A-15 65518
E101	M3764A-15	M3764A-15 65518	M3764A-15 65518
E102	LS86	SN74LS86N	T74LS86B1
E103	LS74	SN74LS74AN	SN74LS74AN
E104	LS74	SN74LS74AN	SN74LS74AN
E105	LS27	T74LS27B1	T74LS27B1
E106	LS74	SN74LS74AN	SN74LS74AN
E107	LS74	SN74LS74AN	SN74LS74AN
E108	LS08	74LS08 PC	SN74LS08N

Resistors - R (81)

ID	Value	Value Ref 1	Comments
R1	3.3kΩ	3.3 kΩ ±5%
R2	1kΩ	1 kΩ ±5%
R3	1kΩ	1 kΩ ±5%
R4	1kΩ	1 kΩ ±5%
R5	1kΩ	1 kΩ ±5%
R7	1kΩ	1 kΩ ±5%
R9	1kΩ	1 kΩ ±5%
R10	150Ω	150 Ω ±5%
R11	220Ω	220 Ω ±5%
R12	3.3kΩ	3.3 kΩ ±5%
R13	3.3kΩ	3.3 kΩ ±5%
R14	10kΩ	10 kΩ ±5%
R15	1kΩ	1 kΩ ±5%
R16	56Ω	56 Ω ±5%
R17	820Ω	920 Ω ±5% / 820 Ω ±5%
R18	1kΩ	1 kΩ ±5%
R19	10kΩ	10 kΩ ±5%
R20	820Ω	920 Ω ±5% / 820 Ω ±5%
R21	20kΩ	20 kΩ ±5%
R22	3.3kΩ	3.3 kΩ ±5%
R23	3.3kΩ	3.3 kΩ ±5%
R26	1.5kΩ	1.5 kΩ ±5%
R36	3.3kΩ	3.3 kΩ ±5%
R37	150Ω	150 Ω ±5%
R38	150Ω	150 Ω ±5%
R39	150Ω	150 Ω ±5%
R40	150Ω	150 Ω ±5%
R41	150Ω	150 Ω ±5%
R42	150Ω	150 Ω ±5%
R43	33Ω	33 Ω ±5%
R44	33Ω	33 Ω ±5%
R45	33Ω	33 Ω ±5%
R46	33Ω	33 Ω ±5%
R47	33Ω	33 Ω ±5%
R48	33Ω	33 Ω ±5%
R49	33Ω	33 Ω ±5%
R50	33Ω	33 Ω ±5%
R51	33Ω	33 Ω ±5%
R52	33Ω	33 Ω ±5%
R53	5.1kΩ	5K1 ±5%
R54	3.3kΩ	3.3 kΩ ±5%
R55	3.3kΩ	3.3 kΩ ±5%
R58	3.3kΩ	3.3 kΩ ±5%
R59	3.3kΩ	3.3 kΩ ±5%
R60	1kΩ	1 kΩ ±5%
R61	1kΩ	1 kΩ ±5%
R62	1kΩ	1 kΩ ±5%
R63	1kΩ	1 kΩ ±5%
R64	1kΩ	1 kΩ ±5%
R65	1kΩ	1 kΩ ±5%
R66	1kΩ	1 kΩ ±5%
R67	1kΩ	1 kΩ ±5%
R68	4.7kΩ	4.7 kΩ ±5%
R69	4.7kΩ	4.7 kΩ ±5%
R70	1kΩ	1 kΩ ±5%
R71	1kΩ	1 kΩ ±5%
R72	1kΩ	1 kΩ ±5%
R73	1kΩ	1 kΩ ±5%
R74	1kΩ	1 kΩ ±5%
R75	1kΩ	1 kΩ ±5%
R76	1kΩ	1 kΩ ±5%
R77	1kΩ	1 kΩ ±5%
R78	4.7kΩ	4.7 kΩ ±5%
R79	4.7kΩ	4.7 kΩ ±5%
R80	4.7kΩ	4.7 kΩ ±5%
R82	1kΩ	1 kΩ ±5%
R83	4.7kΩ	4.7 kΩ ±5%
R84	47Ω	47 Ω ±5%
R85	1kΩ	1 kΩ ±5%
R86	4.7kΩ	4.7 kΩ ±5%
R87	47kΩ	47 kΩ ±5%
R88	47kΩ	47 kΩ ±5%
R89	68Ω	68 Ω ±5%
R90	10kΩ	10 kΩ ±5%
R92	50kΩ		Trimmer Bourns 3296Y. Taken from the donor board ("Ref 3") for measurements.
R93	50kΩ		Trimmer Bourns 3296Y. Taken from the donor board ("Ref 3") for measurements.
R94	10kΩ		Trimmer Bourns 3296Y. Taken from the donor board ("Ref 3") for measurements.
R91	4.7kΩ	4.7 kΩ ±5%
R95	10kΩ	10 kΩ ±5%
R200	Z 2.7V	BZX 2,7	Zener diode. We used Vishay's TZX2V7C-TR diode.
R201	560Ω	560 Ω ±5%
R202	15MΩ	15 MΩ	Blue-colored body resistor (1% or 2% tolerance). We used a 1/4W resistor with a tolerance of ±1%.
R203	390Ω	390 Ω ±5%
R204	330Ω	330 Ω ±5%

Unless noted otherwise in the comments, we used 1/4 W resistors with a tolerance of ±5%.

Capacitors - C (59)

ID	Value	Value Ref 1	Value Ref 2	Size Ref 2	Comments
C1	100μF	100 uF 40 V	100 uF 40 V	9 mm	Radial electrolytic capacitor (50V 100μF 10%).
C2	100μF	100 uF 40 V	100 uF 40 V	9 mm	Radial electrolytic capacitor (50V 100μF 10%).
C3	100μF	100 uF 40 V	100 uF 40 V	9 mm	Radial electrolytic capacitor (50V 100μF 10%).
C4	100μF	100 uF 40 V	100 uF 40 V	9 mm	Radial electrolytic capacitor (50V 100μF 10%).
C5	1nF	1n0	1n0	5 mm
C6	1nF	1n0	1n0S (400V?)	12 mm
C7	2.2nF	2n2	2n2	8 mm
C8	68μF	68uF 25V	68uF 25V	7 mm	Radial electrolytic capacitor (50V 68μF 10%).
C17	68pF	68p	68p	5 mm
C18	82pF	82p	82p	7 mm
C20	68μF	68 uF 25 V	68 uF 25 V	7 mm	Radial electrolytic capacitor (50V 68μF 10%).
C21	20pF	22 pF	22J	5 mm
C22	20pF	22 pF	22J	5 mm
C102	2.2nF	2n2	2n2	7 mm
C103	390pF (391)	380K Y5P / 390K Y5P	380/390K	5 mm
C110	390pF (391)	390K Y5P	380/390K	5 mm
C300	330pF (331)	330	330	5 mm
C301	680nF	684 100V	684 50V	9 mm	We used a multilayer ceramic capacitor (50V 0.68μF ±10%). It is physically/visually too small though (a higher voltage rating would probably look better).
CX (41)	0.1μF (104)	104 50V	104 50V	5 mm	We used multilayer ceramic capacitors (50V 0.1μF ±5%). There are 41 CXs on the board.

Unless specified otherwise in the comments, we used 1 kW ceramic disc capacitors. We chose this power rating because the physical sizes roughly match those of the original capacitors.

Other Components

ID	Value	Value Schema	Value Ref 1	Comments
BAT	3.6V	3V	VARTA SafeTronic 3.6 V	We used a 3.6 V 80 mAh Ni-Mh battery.
V1	LED	LED		Specs?
V2	BA513	1N914	BA 513	We used a 1N914 diode. The original "Ref 1" board has a BA513 (1N4448) diode.
V3	BA513	1N4148	BA 513	We used a 1N4148 diode. The original "Ref 1" board has a BA513 (1N4448) diode.
V4	BA513	1N4148	BA 513	We used a 1N4148 diode. The original "Ref 1" board has a BA513 (1N4448) diode.
Y1	8MHz	8MHZ	8.000 SUNNY 2779	Specs?
Y2	32.768kHz	32.768KHZ	QRT-38 I	Specs?
Y3	1.8432MHz	1.8432MHZ	1843 20 kHZ 11034	Specs?
X10	Power connector	/	/
J1	Pin header 2×17	/	/
J2	Pin header 2×32	/	/
J3	Pin header 1×3	/	/
J5	Pin header 1×5	/	/
J6	Pin header 2×20	/	/
J7	Pin header 2×13	/	/
J8	Pin header 2×13	/	/
J9	Pin header 2×13	/	/
JJ2	Jumper 1×2	/	/
JJ7	Jumper 1×2	/	/
JJ8	Pin header 1×4 + Pin header 1×14	/	/
JJ9	Jumper 2×2	/	/
JJ10	Jumper 1×2	/	/
JJ50	Jumper 2×2	/	/

The original jumpers and pin headers have a termination post length of just over 3 mm and a mating post length of just below 7 mm.

Shopping List

Item / List	Desc	Service	Link	Price
Circuit board	/	PCBWay	TODO	35.84 USD*
Mouser Project: Partner - E	Integrated circuits (74/101)	Mouser	https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=249dc903ed	118.95 €
Mouser Project: Partner - R	Resistors (81/81)	Mouser	https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=5393aec102	12.20 €
Mouser Project: Partner - C	Capacitors (59/59)	Mouser	https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=89c7b43e3d	32.97 €
Mouser Project: Partner - V	Diodes (3/4)	Mouser	https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=1df4c5cce4	0.47 €
Mouser Project: Partner - Sockets	IC sockets with turned pin contacts (101/101)	Mouser	https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=c9cba6a4d2	103.18 €
Mouser Project: Partner - J+JJ	Jumpers & pin headers (14/14**)	Mouser	https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=dc5819c5d5	50.92 €
74LS01	IC (E81)	Lotos	https://www.lotos.si/sl-SI/shop/item/2883000000106	0.69 €
Battery	3.6 V 80 mAh Ni-Mh (BAT)	Delko	https://www.delko.si/sl/industrijska-36v-80-mah-ni-mh-polnilna-gp-baterija.html	4.55 €
Total				~365 €

*The minimum order at PCBWay is 5 boards. The price shown here is for 1 board.

**One of the jumpers (JJ8) is made of two pin headers. It is thus actually 15 J and JJ components altogether.

The following components are not on these lists and you will need to find them elsewhere (e.g., eBay):

ID	Value	Our Source
E59-E62, E71-E74, E85-E88, E98-E101 (16)	M3764A-15	eBay
E51	M2716	eBay
E56	D765	eBay
E64	MC14411	eBay
E35	MM58167A	eBay
E48	WD1691	Donor board
E57	WD2143	eBay
E67	Z80A CTC	Donor board
E33	Z80A DMA	Community
E30	Z80A SIO/1	Community
E32	Z80A CPU	Donor board
V1	LED diode	Donor board
Y1	Crystal 8 MHz	Donor board
Y2	Crystal 32.768 kHz	Donor board
Y3	Crystal 1.8432 MHz	Donor board
X10	Power connector	Donor board

Assembly

The following figure shows the board's layout and helps you understand where each component should be placed and how it should be oriented. There is also a PDF version.

Power Connector (X10)

Front side of the board:

          (R78-R85)

 (JJ1)   12V  5V  5V
 (JJ5)    o   o   o
 (JJ7)
 (JJ6)  -12V GND GND
(JJ31)    o   o   o
(JJ30)

Board Settings

Trimmers R92, R93, R94

The following are the exact resistance measurements between the three pins of the trimmers. These trimmers were taken from the donor board ("Ref 3").

R92, bottom view:

    o     o
16kΩ \   / 35kΩ
       o

R93, bottom view:

   o     o
9kΩ \   / 43kΩ
      o

R94, bottom view:

     o     o
2.2kΩ \   / 8.2kΩ
        o

Jumpers

JJ8, top view:

┌───────────────┐
│         o o─o─o 
│         └─────┐
o o o o o o o o o o o o o o

JJ9, top view:

       o o  (R58,R59)
(E64)  o─o

JJ50, top view:

       o─o  (JJ8)
(E43)  o─o

Board Initialization

TODO