CPU Shack: Odd-ball rare EPROMs and a Mystery - ALL SOLD

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CPUShack



Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA

PostPosted: Sat May 25, 2019 8:43 pm    Post subject: CPU Shack: Odd-ball rare EPROMs and a Mystery - ALL SOLD Reply with quote

ho doesnt love a mystery

(One each reserved for The CPU Hunter)

3x WaferScale 27C64-25 64K EPROM $5
3x WaferScale 27C64-30 64K EPROM $5
These are very early WaferScale EPROMs, before they went by WSi
First EPROMs I have seen that are marked 'EPROM' lol

2x AMD AM2764A-2DIB Industrial Temp w/ Burn in $1

3x EMT EM68701C $5
These are a mystery, the die is marked 27C64Y with a logo I kind of recognize but cant place, copyright 1985, very unusual

1x Motorola MC68704P5 unmarked (die is nicely marked thankfully) $4
1x Intel D2716-2 Q0022 $10

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Last edited by CPUShack on Sun May 26, 2019 1:19 am; edited 2 times in total
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cvandijk



Joined: 21 Jul 2016
Posts: 3589
Location: Netherlands

PostPosted: Sat May 25, 2019 8:48 pm    Post subject: Reply with quote

Nice ones, 1 of each, thanks
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debs3759



Joined: 18 Jan 2006
Posts: 9477
Location: Northampton, Divided Kingdom

PostPosted: Sat May 25, 2019 9:14 pm    Post subject: Reply with quote

1x WaferScale 27C64-25 64K EPROM $5
1x WaferScale 27C64-30 64K EPROM $5

1x AMD AM2764A-2DIB Industrial Temp w/ Burn in $1

1x EMT EM68701C $5

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aberco



Joined: 05 Sep 2013
Posts: 2655
Location: Paris France

PostPosted: Sat May 25, 2019 11:24 pm    Post subject: Reply with quote

1x WaferScale 27C64-25 64K EPROM $5
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aberco



Joined: 05 Sep 2013
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PostPosted: Sat May 25, 2019 11:25 pm    Post subject: Reply with quote

1x Motorola MC68704P5 unmarked (die is nicely marked thankfully) $4
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CPUShack



Joined: 16 Jun 2003
Posts: 34259
Location: State of Jefferson, USA

PostPosted: Sat May 25, 2019 11:34 pm    Post subject: Reply with quote

The EMT EPROMs were made for (and marked by) most likely:
https://en.wikipedia.org/wiki/Elektro-Mess-Technik most likely.

They made audio equipment in the 1980s and generally wiped all the original markings on dang near every IC, and put then own on

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The CPU Hunter



Joined: 25 Nov 2010
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PostPosted: Sun May 26, 2019 12:34 am    Post subject: Reply with quote

Very nice, one each please.
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