David Robertson wrote:
> As part of my 7400 series logic CPU project I'm looking for one of these
> wire wrap boards like are shown at this link
> http://www.bigmessowires.com/2007/12/08/first-hardware/
>=20
> I've had a look online, and there's a few on eBay, but they're all at
> ridiculously high prices - they're being sold as collectors' items or
> something. These things were made to be used!
>=20
> If anyone has and is willing to sell me one, or knows of a relatively che=
ap
> source of these, please reply.

I have a never-used board that would be suitable for your project. Garry
brand, manufactured for Raytheon. It has 36 rows of 116 pins each (i.e., ro=
om
for at least 18 x 12 =3D 216 of 16-pin DIPs), plus lots of Vcc and Gnd pins=
..
It's 12" x 15" overall, including areas at the ends for various kinds of
connectors. The pins have gold contacts where the chips plug into them, but
the tails where you wrap your wires are tin-plated. The pins are relatively
short -- two levels of wirewrap connections, but not three.

Pictures: http://www.dtweed.com/images/20121018/

Wow, I had no idea these were getting such high prices on Ebay (but are the=
y,
really?) I would be willing to part with this board for $50 plus shipping.

I also have smaller boards if this one is larger than you want. Let me know=
,
and I'll see if I can dig up something suitable.

-- Dave Tweed
--=20
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