Re: Apple II rev 0 replica tradeoffs

[mike@willegal.net]

On Jun 3, 10:28 pm, David Wilson <mcs6...@gmail.com> wrote:
> > If you don't know the difference, each type can be plainly be seen in
> > this comparative view of the GAME I/O sockets (replica has machined
> > socket).http://www.willegal.net/appleii/images/iodetailcompare.jpg
>
> I think there are three types of sockets.
>
> Best - Machine pin (except for devices with thicker pins like the Zip
> Chip)
> Good - Solder Tail Dual Wipe (the contact is visible)
> Poor - the sort shown in the right hand picture with hidden contact
> (no idea what they are called)
>
> I personally would never use that last sort of socket again
> (especially for anything that was going to experience repeated
> insertions & removals {like the game port}).

The board on the right is an original rev 0 Apple.  The board on the
left is a replica from my first batch with machined sockets.
The machined sockets (left) are roughly 4 times the cost of the solder
tail variety.  In fact many common 74ls series parts can
be purchased for less then the cost of a machined socket.  I'm not
sure how you differentiate between the solder tail and the kind with
the hidden contact.

Regards,
Mike Willegal