Re: Univac I memory tank

2017-04-05 Thread Cory Heisterkamp via cctalk
On Mar 15, 2017, at 3:11 AM, Pontus Pihlgren via cctalk wrote: > On Tue, Mar 14, 2017 at 05:41:57PM -0400, Noel Chiappa via cctalk wrote: >>> From: Dwight Kelvey >> >>> I need on of those. >> >> I think it belongs in a museum, actually. Provided they can make it work, of >> course! :-) I wonder

Re: Univac I memory tank

2017-03-16 Thread dwight via cctalk
From: cctalk <cctalk-boun...@classiccmp.org> on behalf of Christian Corti via cctalk <cctalk@classiccmp.org> Sent: Thursday, March 16, 2017 2:22:27 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Univac I memory tank On Wed, 15 Mar 2017, dwight wrote: > Th

Re: Univac I memory tank

2017-03-16 Thread Christian Corti via cctalk
On Wed, 15 Mar 2017, dwight wrote: The Olivetti used a piece of wire for the delay line. I forget what the Dielh Combitron used but I know it used a two delay lines. One was for registers and the other was for lookup tables that loaded at turn on time from a metal tape ( as I recall ). I can

Re: Univac I memory tank

2017-03-15 Thread Marc Howard via cctalk
_ > From: cctalk <cctalk-boun...@classiccmp.org> on behalf of Pontus Pihlgren > via cctalk <cctalk@classiccmp.org> > Sent: Wednesday, March 15, 2017 1:11:10 AM > To: Noel Chiappa; General Discussion: On-Topic and Off-Topic Posts > Subject: Re:

Delay Lines (Was: Univac I memory tank)

2017-03-15 Thread Rick Bensene via cctalk
Dwight wrote: > The Olivetti used a piece of wire for the delay line. The Programma 101 indeed used a delay line. Such delay lines use magnetostrictive means to push a torque pulse into one end of the wire, as well as detect a torque twist at the other end of the wire. Magnetostrictive

Re: Univac I memory tank

2017-03-15 Thread dwight via cctalk
ppa; General Discussion: On-Topic and Off-Topic Posts Subject: Re: Univac I memory tank On Tue, Mar 14, 2017 at 05:41:57PM -0400, Noel Chiappa via cctalk wrote: > > From: Dwight Kelvey > > > I need on of those. > > I think it belongs in a museum, actually. Provided they can

Re: Univac I memory tank

2017-03-15 Thread Pontus Pihlgren via cctalk
On Tue, Mar 14, 2017 at 05:41:57PM -0400, Noel Chiappa via cctalk wrote: > > From: Dwight Kelvey > > > I need on of those. > > I think it belongs in a museum, actually. Provided they can make it work, of > course! :-) I wonder how many working delay line main memories are left in > the

Re: Univac I memory tank

2017-03-14 Thread Adrian Stoness via cctalk
The mercury also gets dirty from its own oxidization On Mar 14, 2017 5:00 PM, "Ben Sinclair via cctalk" wrote: > On Tue, Mar 14, 2017 at 4:41 PM, Noel Chiappa via cctalk < > cctalk@classiccmp.org> wrote: > > > I think it belongs in a museum, actually. Provided they can

Re: Univac I memory tank

2017-03-14 Thread Ben Sinclair via cctalk
On Tue, Mar 14, 2017 at 4:41 PM, Noel Chiappa via cctalk < cctalk@classiccmp.org> wrote: > I think it belongs in a museum, actually. Provided they can make it work, > of > course! :-) I wonder how many working delay line main memories are left in > the world? > If that's from a Univac I, I'd

Re: Univac I memory tank

2017-03-14 Thread Paul Koning via cctalk
> On Mar 14, 2017, at 5:45 PM, dwight via cctalk wrote: > > It is not likely to be made to work, easily. From what I was > told, the mercury ones needed to be rebuilt after some time. > Most likely because the mercury dissolved one of the metals > used in side. > > I

Re: Univac I memory tank

2017-03-14 Thread dwight via cctalk
I hear someplace. Dwight From: cctalk <cctalk-boun...@classiccmp.org> on behalf of Noel Chiappa via cctalk <cctalk@classiccmp.org> Sent: Tuesday, March 14, 2017 2:41:57 PM To: cctalk@classiccmp.org Cc: j...@mercury.lcs.mit.edu Subject: Re: Univac I

Re: Univac I memory tank

2017-03-14 Thread Ian S. King via cctalk
On Tue, Mar 14, 2017 at 11:21 AM, Adrian Stoness via cctalk < cctalk@classiccmp.org> wrote: > its been pulled > > It's still there when I click on the link, five days to go. Boy howdy, this would be a headache to get shipped! Even if the mercury is gone, there are almost certain to be

Re: Univac I memory tank

2017-03-14 Thread Adrian Stoness via cctalk
uesday, March 14, 2017 10:20:00 AM > > To: General Discussion: On-Topic and Off-Topic Posts > > Subject: Univac I memory tank > > > > http://www.ebay.com/itm/162428766985 > > > > Asked if the mercury was still in it. They ignored me. > > > >

Re: Univac I memory tank

2017-03-14 Thread Zane Healy via cctalk
lk-boun...@classiccmp.org> on behalf of Al Kossow via > cctalk <cctalk@classiccmp.org> > Sent: Tuesday, March 14, 2017 10:20:00 AM > To: General Discussion: On-Topic and Off-Topic Posts > Subject: Univac I memory tank > > http://www.ebay.com/itm/162428766985 > > Asked if the mercury was still in it. They ignored me. >

Re: Univac I memory tank

2017-03-14 Thread dwight via cctalk
Cool. I need on of those. Dwight From: cctalk <cctalk-boun...@classiccmp.org> on behalf of Al Kossow via cctalk <cctalk@classiccmp.org> Sent: Tuesday, March 14, 2017 10:20:00 AM To: General Discussion: On-Topic and Off-Topic Posts Subject: Univac I

Univac I memory tank

2017-03-14 Thread Al Kossow via cctalk
http://www.ebay.com/itm/162428766985 Asked if the mercury was still in it. They ignored me.