Historic Apple-1 photos scanned from slides

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Historic Apple-1 photos scanned from slides

I recently came accross some old Apple marketing slides that included some historic photos of the early years of the company. Among them were these photos related to the Apple-1. Most/all of these photos are available online, but not in high resolution...so I'm sharing them here after scanning them.

 

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Photo of the slides

Photo of the slides themselves:

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Nice photos! The second one

Nice photos! The second one seems to be in reverse.

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kakemoms wrote:Nice photos!
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kakemoms wrote:Nice photos!

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kakemoms wrote:Nice photos!
kakemoms wrote:

Nice photos! The second one seems to be in reverse.

 

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I'm not sure if anyone has

I'm not sure if anyone has noticed this before, but in the photo of the board assembly/test area on the right side of the table is an Apple-1 board with large orange capacitor like the production prototype (#2 in the registry). I'm not sure if it's the same board but it's interesting to see it there.

 

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Sprague Atom Capacitors
fingerz wrote:

I'm not sure if anyone has noticed this before, but in the photo of the board assembly/test area on the right side of the table is an Apple-1 board with large orange capacitor like the production prototype (#2 in the registry). I'm not sure if it's the same board but it's interesting to see it there.

 

[[{"fid":"31988","view_mode":"default","fields":{"format":"default","alignme

The orange capacitors are period correct. Most Apple I builders are familar with the blue Sprague electoylitic capacitors.

During the 1970's Sprague also produced orange electroylitic capacitors with the same 'Atom' branding  seen on many blue capacitors.

I do not know what the difference is between the two types.

 

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"original Apple 1" prototype?

If the board in the wood box is an Apple 1, it's a prototype that's very different than the production board. The daughterboard with eight large-ish chips must be the DRAM, but it's not MK4096 multiplexed address DRAM. It may be the older non-multiplexed DRAM like the Intel 2107.

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The added pcb is a set of ROM

As I remember, I thing the added pcb is a set of ROM. WOZ didn't want to type-in BASIC all the time. 

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It doesn't look like an Apple

It doesn't look like an Apple I at all. It has edge connectors on the top.

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It does look like they could

It does look like they could be ceramic side-brazed windowed EPROMS,  probably not 1702 because that wouldn't be enough for BASIC. Maybe 2704 or 2708, though those were quite expensive in 1975-1976.

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Clearly it's a prototype, but

Clearly it's a prototype, but despite the different layout and connectors, it does look like an Apple 1. It does appear to have the 2504 shift registers.

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About Sprague Atom Capacitors
IEEE-802 wrote:

"During the 1970's Sprague also produced orange electrolytic capacitors with the same 'Atom' branding  seen on many blue capacitors.

I do not know what the difference is between the two types."

 

The Sprague "Atom" capacitors are smaller in size than the "non-Atom" ones. Alas, being smaller / shorter, they are no option for purists seeking "authetic looks". But for cheapskates who don't care a damn about authentic looks, they are great.

 

Anchor Electronics (www.anchor-electronics.com) has Sprague Atom 5000/16 for $0 .79 each. A steal ! They also have all the TTLs  in  stock for a good price. They still have the Signetics 2513 Character Generators for $6.95 each. And all the sockets, precision machined and the cheaper ones - but beware, if you order their "double swipe" cheap sockets, you don't get the TI crap as their catalog drawing would imply, but the more modern ones that are reliable (those with the "knife edge" type contact spring and one flat piece of contact towards the outer side of the sockets, sorry, can't snap a photo, but hope you know what I mean. They don't look like the TI sockets.)

They also have the 6502B (3 MHz version) for $4.95 and the 6520A which replaces the 6820 for $1.95. And the MCM4027 DRAMs for less than a dollar each ! Great prices ! (DISCLAIMER: the pdf price list I have is 1 year old, so prices may have changed, but I know for sure the IC prices still were great with my last order earlier this month).

They also  the TO-5 style trim pots that really fit into the PCB, but alas, no 100 Ohms, but they still have 50 Ohm ones, and all you need to do is to cut the ground trace at the pot and put a 50 Ohm resistor in series, to again arrive at 100 Ohms, although with a slighly smaller video amplitude adjustment range, that however still fits.

And they are nice people. No price gougers !

 

 

 

 
 
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Apple-1 first prototype

The first handwired prototype in the wooden box was in the former Apple museum. Many people saw it and even a youtube video exists. Sadly, it is most likely lost.

 

If someone got other photos of it, please send it to me via Applefritter or the Apple-1 Registry. 

 

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Orange Sprague Caps
Took forever to find it, but here's a closer up photo of that board with the orange sprague capacitors. Paul Terrell had take Polaroids of the board and it working.
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Nice pictures! It looks like

Nice pictures!

 

It looks like the 6800-section is populated on this board, which indicates that it has either a M6800 or a MOS6501 CPU?

 

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I would guess it was a 6501

I would guess it was a 6501 since Woz has said he never wrote a montitor program for the 6800

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Interesting deduction. But

Interesting deduction. But someone did order one with a 6800? Or am I wrong. I can also spot a few differences in the traces on the board. For example the broad trace to the right of the 74154 multiplexer, and a trace (or strap?) between number 11 and 12.

 

It also indicates that the computer in this link is not a prototype: https://www.vox.com/2016/8/26/12648082/apple-1-prototype-auction-815000

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kakemoms wrote:Interesting
kakemoms wrote:

Interesting deduction. But someone did order one with a 6800? Or am I wrong. I can also spot a few differences in the traces on the board. For example the broad trace to the right of the 74154 multiplexer, and a trace (or strap?) between number 11 and 12.

 

It also indicates that the computer in this link is not a prototype: 

The computer in the link was a prototype, just not a PCB prototype.   There were many prototypes of the Apple-1 from wirewrapped to near final PCB.  This one was most likely a test PCB run and was wired up in a way to test memory and other aspects of the Apple-1 and it also was wave soldered with completely different sockets and only the sockets were wave soldered.

 

 

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Ok. I didn't know there were

Ok. I didn't know there were several prototypes. That's very interesting. Is there anywere I can read about them?

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Woz has refered to some of

Woz has refered to some of them in the past.

 

He has mentioned for example the wirewrapped ones and a static ram version which may have been wirewrap also, he doesn't say....  There is the one with here without a green coat and the one from the link here that has a green coat and the board is final, but the components on the board aren't.

 

 

 

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where can i get the layout of the apple 1 pcb

hello i would like to know where i get the original pcb layout for apple 1 for my replica

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