I haven't done anything yet, I'm waiting first to collect pictures, schemes and information.I see that your post is a couple of years old, so how is it going.
The price I got for this card was $500.xx Canadian a couple of years ago. I could use 3 of them if they where affordable.
The schematics at bitsavers.org are pretty good but their not for the 3Rd parity enhanced version.
hi fans of the Rainbow 100, an update for you on my graphics board rebuild work.Hi, I'm trying to remake the Rainbow 100 graphic card, just for fun, using Tony Duell's schematics.
can anyone take some high resolution pictures of this card (front and rear) and or original schematics ?
help would be greatly appreciated
Regards
Nicola
Hi,Hello! Really good work you have done with the mem expansion board and this board.
Not really related to the Rainbow card itself but more on the process to reverse engineer it.
It would be very interesting to hear about how you do it.
Perhaps this is stupid questions. Nevertheless.
The board has at least four layers as it seems. How can you get a good picture of the top layer with components in place?
Do you make a netlist from this picture?
I have a bunch of mostly double sided boards that I would like to reverse engineer into proper netlists. It would be awesome to learn a good method of doing that.
N° | Type | Position | Mouser or Digikey Parts |
3 | 74LS112 | U1 U5 U49 | SN74LS112AN |
2 | 74LS174 | U2 U91 | SN74LS174N |
3 | 74F374 | U3 U30 U58 | SN74F374N |
5 | 74LS74 | U4 U6 U7 U38 U64 | SN74LS74AN |
4 | 74LS597 | U8 U16 U17 U25 | SN74LS597N ebay |
2 | 74F174 | U9 U59 | SN74F174AN |
4 | 74F74 | U13 U39 U45 U94 | SN74F74N |
2 | 74LS00 | U14 U23 | SN74LS00N |
3 | 74LS08 | U15 U42 U51 | SN74LS08N |
6 | 74LS163 | U18 U26 U32 U40 U44 U52 | SN74LS163AN |
1 | 74LS368 | U22 | SN74LS368AN |
3 | 74LS04 | U24 U33 U48 | SN74LS04N |
3 | 74LS02 | U41 U56 U66 | SN74LS02N |
1 | 74LS139 | U43 | SN74LS139AN |
3 | 74F157 | U46 U54 U62 | SN74F157AN |
6 | 74LS32 | U47 U53 U55 U65 U71 U88 | SN74LS32N |
1 | 74LS138 | U50 | SN74LS138N |
4 | 74LS245 | U60 U75 U96 U99 | SN74LS245N |
6 | 74F373 | U63 U73 U74 U76 U79 U100 | SN74F373N |
3 | 74LS393 | U68 U72 U77 | SN74LS393N |
4 | 74LS157 | U69 U78 U97 U98 | SN74LS157N |
2 | 74LS373 | U70 U86 | SN74LS373N |
2 | 74LS153 | U80 U87 | SN74LS153N |
1 | 74LS169 | U81 | SN74LS169BN |
1 | 74LS30 | U83 | SN74LS30N |
1 | 74LS75 | U93 | SN74LS75N |
1 | 74LS165 | U102 | SN74LS165AN |
2 | GAL16V8 | U90 U95 | ATF16V8BQL-15PU |
1 | Oscillator 31.188Mhz | U31 | ECS-P145-AX |
2 | 15 4.7k resistor array DIP | U57 U82 | 4116R-2-472LF |
1 | 15 560 resistor array DIP | U67 | 4116R-2-561LF |
8 | DRAM 4164-15 | U10 U11 U19 U20 U28 U29 U36 U37 | Ebay |
2 | PROM 74S472 | U12 U21 | Ebay DM74S472AN |
6 | SRAM 74S189 | U27 U34 U35 U61 U92 U101 | Ebay |
1 | NEC D7220D-1 | U84 | Ebay |
1 | SRAM 16k (2k*8) | U85 | Ebay HM6116P-2 or AM9128-10 |
4 | 715R 1/4W 1% | R1 R3 R4 R16 | MF1/4DC7150F |
1 | 4.7K 1/4W 1% | R2 | MF1/4CCT52R4701F |
3 | 2.8K 1/4W 1% | R5 R11 R18 | MF1/4DC2801F |
1 | 50R 1/4W 1% | R6 | MFR-25FTE52-50R |
3 | 348R 1/4W 1% | R7 R9 R10 | MF1/4CC3480F |
3 | 75R 1/4W 1% | R12 R22 R24 | MFS1/4DCT52R75R0F |
1 | 249R 1/4W 1% | R8 | MF1/4CC2490F |
3 | 1.4K 1/4W 1% | R13 R15 R17 | MF1/4DC1401F |
3 | 121R 1/4W 1% | R14 R20 R23 | MF1/4CC1210F |
1 | 180R 1/4W 1% | R19 | MF1/4DCT52R1800F |
1 | 62R 1/4W 1% | R21 | 271-62-RC |
2 | 82R 1/4W 1% | R25 R30 | MF1/4DC82R0F |
1 | 200R 1/4W 1% | R26 | MF1/4DC2000F |
2 | 1K 1/4W 1% | R27 R28 | MF1/4DCT26A1001F |
1 | 51R 2W 1% | R29 | WHC51RFET |
3 | 4.7K x 7 | RN1 RN2 RN6 | 4608X-AP1-472LF |
2 | 560R x 7 | RN3 RN4 | 4608X-101-561LF |
1 | 4.7K x 8 | RN5 | 4609X-101-472LF |
42 | 47nF 0.047uF 50V axial | C1-C3 C6-C8 C11 C12 C15 C16 C19 C20 C23-C25 C30-C49 C52-C58 | A473K15X7RF5UAAP |
8 | 220nF 0.22uF 50V axial | C4 C5 C9 C10 C13 C14 C21 C22 | A224K20X7RF5UAAP |
7 | 10 nF 0.01uF 50V axial | C17 C18 C26-C29 C51 | A103K15X7RF5UAA |
1 | 4.7 uF 50V axial | C50 | 475TTA050M |
1 | 1N754A VZ= 6.8 1% 400MW | D1 | 1N754A |
1 | 1N4619 VZ= 3.0 1% 250MW | D2 | 1N4619 |
3 | 2N2905A | Q1 Q2 Q3 | 2N2905A |
1 | J1 | 40pos 571-7-534206-0 or 48pos 571-2-535542-4 | |
14 | Socket DIP 16 | U10 U11 U19 U20 U28 U29 U36 U37 U27 U34 U35 U61 U92 U101 | 1-2199298-4 |
4 | Socket DIP 20 | U12 U21 U90 U95 | 1-2199298-6 |
1 | Socket DIP 40 | U84 | 1-2199299-5 |
1 | Socket DIP 24 | ICA-624-SGT |
vintage components, such as the NEC D7220AD-1 7Mhz, are not easy to find, there are many fakes on ebay and it is not easy to test. perhaps with patience I could recover the components from some board and halve the budget.Some collectors have piles of old TTL chips and might be able to build such a board for not too much money. But when you have to buy all the chips for the full price, things will become a bit different. Sometimes I don't care too much about projects being too expensive... As long as the fun/price ratio is good... I hope someone else will finish your project!
So you have no built the card up to see if it at least is functional? You could probably make all your money back if you paced yourself on parts. I can do this for far less that $400.00 for sure. PRinting the board would be the most expensive part.
A really impressive effort! I'm not a big Rainbow fan, but the amount of work you put in here is remarkable. Let me know when you replicate a PEP-70 though!I am sorry to tell you that I will not build this board because the cost, over $400, is too high for my limited budget.
however I share all my work in case someone in the future can try to build or just use it for restore/fix the original board.