24 Mar
2017
24 Mar
'17
10:43 a.m.
From: John Wilson
I think this is DELUA?
Yes, that's right - sorry!
I'm getting old ... could have it wrong.
No, _I_'m the one who's getting old! (But in this case, that's not it - I
always get the names of those two mixed up!)
I'd be inclined to just try it.
I hadn't bought anything yet... :-) In particular, there's a source of really
cheap P12's, but if the 2mm width difference means the Pxx's won't fit, no use
paying good money for them, right?
the definitely-fried CPU (right?) that's in there
now?
The definitely-missing CPU that's not in there now, actually! ;-)
Noel
24 Mar
24 Mar
11:01 a.m.
________________________________________
From: cctalk [cctalk-bounces at classiccmp.org] on behalf of Noel Chiappa via cctalk
[cctalk at classiccmp.org]
Sent: Friday, March 24, 2017 1:43 PM
To: cctalk at classiccmp.org
Cc: jnc at mercury.lcs.mit.edu
Subject: Re: MC68K's on DEUNA's
From: John Wilson
I think this is DELUA?
Yes, that's right - sorry!
I'm getting old ... could have it wrong.
No, _I_'m the one who's getting old! (But in this case, that's not it - I
always get the names of those two mixed up!)
I'd be inclined to just try it.
I hadn't bought anything yet... :-) In particular, there's a source of really
cheap P12's, but if the 2mm width difference means the Pxx's won't fit, no use
paying good money for them, right?
the definitely-fried CPU (right?) that's in there
now?
The definitely-missing CPU that's not in there now, actually! ;-)
Noel
__________________________________________
Considering that I have never seen any sockets that were 2mm different
in width or length I really can't imagine any CPU not fitting. I doubt
Motorolla was in the business of custom making different size chips, even
for DEC.
bill
11:05 a.m.
On Fri, Mar 24, 2017 at 12:01 PM, Bill Gunshannon via cctalk
<cctalk at classiccmp.org> wrote:
________________________________________
From: cctalk [cctalk-bounces at classiccmp.org] on behalf of Noel Chiappa via cctalk
[cctalk at classiccmp.org]
Sent: Friday, March 24, 2017 1:43 PM
To: cctalk at classiccmp.org
Cc: jnc at mercury.lcs.mit.edu
Subject: Re: MC68K's on DEUNA's
I'd agree with Bill. DIP is DIP in this era. The 2mm difference will
be in the size of the package, not the offset of the pins coming out
of that package. IIRC, the ceramic packages had better heat radiation
properties, so a plastic package may need some help to shed its head
(heat sink, more air flow, etc).
Warner
From: John Wilson
I think this is DELUA?
Yes, that's right - sorry!
I'm getting old ... could have it wrong.
No, _I_'m the one who's getting old! (But in this case, that's not it - I
always get the names of those two mixed up!)
I'd be inclined to just try it.
I hadn't bought anything yet... :-) In particular, there's a source of really
cheap P12's, but if the 2mm width difference means the Pxx's won't fit, no
use
paying good money for them, right?
the definitely-fried CPU (right?) that's in
there now?
The definitely-missing CPU that's not in there now, actually! ;-)
3143
days inactive
3143
days old
2 comments
3 participants
participants (3)
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bill.gunshannon＠hotmail.com -
imp＠bsdimp.com -
jnc＠mercury.lcs.mit.edu