Reproduction Altair 88-UIO Universal I/O Board

[tep392]

I'm probably the most anxious of anyone. Their first attempt at producing the boards was a fail because the didn't mask the connector fingers when they applied the HASL finish. They built a second set and this time the fingers weren't completely covered in gold. They also got some gold on the via's that next to the fingers, which didn't bother me since it has no functional impact. Probably my fault anyways for not putting enough space between the fingers and via's. They are redoing the gold finish on the fingers and claim they will ship by the 26th. We'll see.

[tep392]

They’re here!

[tubarespect]

They’re here!

IMG_3553.jpeg

Fantastic! Let us know when you are ready to take orders.

[toml_12953]

They’re here!

IMG_3553.jpeg

I'm ready to order a couple! Now can you post a BOM?

[tep392]

Here is the BOM. Most of the parts are available from Digikey and I have included those p/n's. There are a few obsolete IC's but those should be available from Unicorn Electronics. Sorry about the formatting. I tried attaching a PDF and TXT file, but it wasn't allowed for some reason.

ID Qty Desc Part Number ** Notes
C3, C14 2 0.001uf BC1089CT-ND Ceramic
C19 1 0.015uf 338-4422-ND Film
C7 1 0.01uf BC2662CT-ND Ceramic
C6,C9,C15,C18 4 0.033uf 399-18287-ND Metalized Polypropylene
C2 1 0.1uf 1572-1011-ND Metalized Polypropylene
C1,C8,C10 3 1uf 478-8952-1-ND Tantalum
C4,C5,C11,C12,C16,C17 6 22 uf 478-6015-ND Tantalum
C13 1 50 pf C323C510JAG5TA-ND Ceramic
SC 18 0.1uf BC2665CT-ND Ceramic
VR1 1 2k 3006P-202-ND Trimpot multi-turn
R8 1 100 CF12JT100RCT-ND 1/2W 5%
R18,R19 2 470 CF12JT470RCT-ND 1/2W 5%
R17 1 1.5k 1.5KWCT-ND 1W 5%
R4,R9,R15,R21,R22 5 10k CF12JT10K0CT-ND 1/2W 5%
R3 1 2.2k CF12JT2K20CT-ND 1/2W 5%
R10,R12 2 200k CF12JT200KCT-ND 1/2W 5%
R2 1 3.3k CF12JT3K30CT-ND 1/2W 5%
R11,R13 2 39k CF12JT39K0CT-ND 1/2W 5%
R5,R6,R14,R16 4 4.7k CF12JT4K70CT-ND 1/2W 5%
R7 1 47k CF12JT47K0CT-ND 1/2W 5%
R20 1 8.2k CF12JT8K20CT-ND 1/2W 5%
R (back of board) 1 2.7k CF12JT2K70CT-ND 1/2W 5%
XTAL 1 2.4576 Mhz CR2.4 (UE) Unicorn Electronics
D1,D2 2 1n4004 641-1311-1-ND
D3 1 1n4733 5.1vz 1N4733AFS-ND
Q1 1 EN2907 Transistor 1514-PN2907APBFREE-ND
A, B, X 3 SN74LS161AN 296-1646-5-ND
C 1 7406N 296-1435-5-ND
D 1 LM565CN LM565N (UE) Unicorn Electronics
E 1 LM741 CA741CG 296-39028-5-ND
F, U 2 SN74LS74N 296-1668-5-ND
G 1 DM74LS20N 296-3670-5-ND
H 1 MC1488L 296-1404-5-ND
J 1 MC1489L 296-9602-5-ND
K 1 MC6850P 6850 (UE) Unicorn Electronics
L 1 AY-5-1013A AY3-1015 (UE) Unicorn Electronics
M 1 CD4018Be 296-14236-ND
N 1 SN74LS153N 296-3654-5-ND
P, A1 2 SN74LS00N 296-1626-ND
Q, R 2 74LS30PC 296-3693-5-ND
S 1 SN74LS138N 296-1639-5-ND
T 1 SN74LS38N 296-1664-5-ND
V, B1, C1 3 SN74LS02N 296-1627-5-ND
W 1 DM74LS04N 296-1629-5-ND
Y 1 SN74LS393N 296-1665-5-ND
Z 1 SN74LS107N 296-33952-5-ND
D1, E1 2 SN74LS75N 296-3744-5-ND
F1, G1 2 SN74LS244N 296-1653-5-ND
H1 1 LM311N 296-1389-5-ND
VR-1 1 UA 7805 497-1443-5-ND
VR-2 1 79M12 AUC MC79M12BTGOS-ND
VR-3 1 7812 LM340-12 497-1452-5-ND
RELAY 1 SPDT Relay 2449-J1071CS9VDC.36-ND
IDC 1 26pos R/A Header MHR26N-ND
SK-1 1 7 switch DIP CT2067-ND
SW-1 1 4 Switch DIP CT206124-ND
P-2 1 10pos Molex R/A header 0026603100-ND
1 18pos DIP fork header A133-ND
1 Molex Female Housing WM1572-ND
10 Crimp Pins WM2300-ND
1 Heat Sink HS278-ND
2 8P DIP Socket ED3044-5-ND
20 14P DIP Socket ED3045-5-ND
8 16P DIP Socket ED3046-5-ND
3 20P DIP Socket ED3054-5-ND
1 24P DIP Socket ED3051-5-ND
1 40P DIP Socket ED3048-5-ND
** All P/N's are Digikey except where noted

[toml_12953]

Here is the BOM. Most of the parts are available from Digikey and I have included those p/n's. There are a few obsolete IC's but those should be available from Unicorn Electronics. Sorry about the formatting. I tried attaching a PDF and TXT file, but it wasn't allowed for some reason.

Fantastic. Thanks! I'm trying to upload an Excel version now.

[toml_12953]

Attempt to upload Excel BOM for 88-UIO board.

[Wayne Parham]

Super groovy cool! I'd love to order a couple of those boards. How can I do that?

[tep392]

To order boards, please PM me here with your email and mailing address. I will contact you back with the total including shipping. I use paypal for payments. Boards are $40 each. Thanks!

Perry

[tep392]

Attempt to upload Excel BOM for 88-UIO board.

It looks like some have fallen out of stock. It's a constant battle for us vintage computer enthusiasts.