Intel C8080A chip brings $565 on EBAY

From: Richard Erlacher <edick_at_idcomm.com>
Date: Sat Nov 24 11:13:29 2001

I made one of my infamous "high-tech-tie-tacks" out of one of these white
ceramic-with-gold-leads 1702's. It's quite an atractive piece of jewelry.
These parts are still routinely available, though not every day, for a couple of
bucks at local surplus outlets, so I'v enot been concerned about their scarcity.

Nope, your Needham burner probably can't deal with the 1702. It was a difficult
part to program, unlike what the Needham type burners (5-volt-supply-only, IIRC)
normally handle. The 1702 required a -9-volt supply, IIRC, and not just
the -5-volt supply that the later multi-voltage parts required. The 1702, IIRC
required a significant negative voltage, (-49 volts or so) for programming and
few programmers, other than the Data I/O Model 29 that I occasionally used at
work, would do that. Consequently, they'd probably not have suppported the I'm
not even sure the Needham programmer will do the 2708 and 3-voltage 2716's.
Will they?

National made an MM5203 that was also 256-bytes in size and was also difficult
to program. It was an even more suitable part for jewelry, as it had a gold
flash all over its upper surface. It was quite a striking piece of hardware
with its large gold surface and extra thick quartz window glued to the top.

Dick

----- Original Message -----
From: "Douglas Quebbeman" <dhquebbeman_at_theestopinalgroup.com>
To: <classiccmp_at_classiccmp.org>
Sent: Saturday, November 24, 2001 9:21 AM
Subject: RE: Intel C8080A chip brings $565 on EBAY


> > John,
> >
> > What would some of the white ceramic package with gold leads 1702 eproms
> > be worth? I watched that one ebay auction for five finish, but the
> > comments on the retracted bid makes me wonder.
>
> I've got a PTC 2KRO with some white/gold 1702s in it... with some
> kind of monitor, haven't plugged the board into the SOL to see
> what they are... I was afraid they'd end up at an address that
> would keep the SOL from booting.
>
> I wonder if my Needham burner can read 1702s?
>
> -dq
>
>
>
Received on Sat Nov 24 2001 - 11:13:29 GMT