CPU Shack: Beryllium Oxide Mask ROMS from the 1970s - SOLD

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CPUShack



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

PostPosted: Tue Aug 21, 2018 12:59 am    Post subject: CPU Shack: Beryllium Oxide Mask ROMS from the 1970s - SOLD Reply with quote

Here are some New Old stock Mask ROMs dated 1979.

They are made by Motorola and Harris. The motos are stamped BeO for a Beryllium Oxide package, typically used in aerospace/military apps.
The box these came in is stamped 'FLIGHT' and '168 hour burn in' so these were high test parts in their day

today? they are $2 for a pair (white/grey) or $3 for 2 sets (I have 15 sets)

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Last edited by CPUShack on Mon Aug 27, 2018 12:24 pm; edited 1 time in total
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cvandijk



Joined: 21 Jul 2016
Posts: 3589
Location: Netherlands

PostPosted: Tue Aug 21, 2018 1:02 am    Post subject: Reply with quote

Very cool, 2 sets for me thanks
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cuttingedgecs



Joined: 08 Oct 2017
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Location: Australia

PostPosted: Tue Aug 21, 2018 1:04 am    Post subject: Reply with quote

$2 for a pair (white/grey)
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xhoba



Joined: 20 Apr 2009
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Location: Picardie, France

PostPosted: Tue Aug 21, 2018 1:11 am    Post subject: Reply with quote

One pair for me please.
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tunder10



Joined: 08 Nov 2006
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PostPosted: Tue Aug 21, 2018 1:46 am    Post subject: Reply with quote

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tunder10



Joined: 08 Nov 2006
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PostPosted: Tue Aug 21, 2018 1:47 am    Post subject: Reply with quote

one for me, thanks
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f00bar



Joined: 02 Jan 2016
Posts: 137
Location: Darmstadt, Germany

PostPosted: Tue Aug 21, 2018 2:50 am    Post subject: Reply with quote

2 sets please!

so, that white stuff can Beryllia too?
damn... i guess its not always stamped... like that.
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CPUShack



Joined: 16 Jun 2003
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PostPosted: Tue Aug 21, 2018 2:13 pm    Post subject: Reply with quote

Plenty left
Yah BeO can be white as well

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guso



Joined: 04 Feb 2009
Posts: 310
Location: Germany

PostPosted: Tue Aug 21, 2018 4:38 pm    Post subject: Reply with quote

Hello,

one pair please.

Thanks!
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gg1978



Joined: 31 Jul 2012
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Location: Indiana, USA

PostPosted: Wed Aug 22, 2018 9:55 am    Post subject: Reply with quote

I'll have two sets..
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CPUShack



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

PostPosted: Wed Aug 22, 2018 12:36 pm    Post subject: Reply with quote

5 sets left
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gmilliorn



Joined: 10 May 2016
Posts: 233
Location: Austin, Texas

PostPosted: Wed Aug 22, 2018 5:31 pm    Post subject: Reply with quote

1 set please
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princess



Joined: 17 Jul 2013
Posts: 206
Location: Germany

PostPosted: Sat Aug 25, 2018 4:30 pm    Post subject: Reply with quote

2 sets please
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lhf_james



Joined: 17 Oct 2008
Posts: 337
Location: Nanjing China

PostPosted: Mon Aug 27, 2018 10:50 am    Post subject: Reply with quote

2 sets please. As far as I know BeO is quite toxic Wink
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