Re: Identifying ][+ motherboards

[Silicon Sam <SiliconSam@gmail.com>]

On Oct 9, 4:39 pm, Nels Bruckner <ne...@comcast.net> wrote:
>      Here's a subject that I'm sure many of you have been over (and
> over) - How do I identify the age of an Apple ][+ motherboard?
>
>      I just picked up a complete ][+ and the motherboard in it appears
> to be older than the 4 other ][/+ motherboards that I have on hand.
> I'll post more specific details tonight after I take a closer look,
> but the details that struck me when I popped the top today at lunch
> were:
>
>      1978 copyright silkscreen above 6502, rather than 1979.
>      Extra RAM configuration jumper blocks or DIP sockets (empyt) to
> the left of each row of RAM.
>      No part number visible on the left-middle (i.e. no 820-0044-x, or
> similar, that I could see)
>      There is no sticker on the bottom of the baseplate. :(
>      Keystwitch / separate encoder style keyboard.
>
>      From my limited knowledge, I'm guessing this make it an
> 820-0001-06 or earlier.
>
>      --Nels

  Look where the card sockets are.  Under the sockets, at the front
edge, you may see a board number.  What color are the sockets?