On 2022-Mar-31, at 11:56 PM, Mark Huffstutter via cctalk wrote:
> -Original Message-
> From: cctalk [mailto:cctalk-boun...@classiccmp.org] On Behalf Of Brent
> Hilpert via cctalk
> Sent: Thursday, March 31, 2022 11:53 PM
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: Re:
On 2022-Mar-31, at 8:05 PM, Anders Nelson via cctech wrote:
> Hey all, found this on eBay:
>
> https://www.ebay.com/itm/Corning-Glass-memory-/125087612899
>
> I can't find any info on it - was it some kind of delay-line or magnetic
> laminate stack?
>
> Interesting!
Very interesting - there we
That's where I first learned about SAW devices, in Broadcasting.
Used to maintain Ikegami 79D ENG field cameras, Ike used them
As H line delays to construct a mask signal of sorts to generate
A Horizontal edge signal, which was applied to the video signal
To add a "Detail" enhancement for sharpenin
On 2022-Mar-31, at 7:44 PM, Noel Chiappa wrote:
>> From: Brent Hilpert
>> DCLO & ACLO behave as power-on-reset signals to the system.
>
> Minor nit: actually, I think it's DCLO which performs that function in a lot
> of places; see e.g. the latches on pg. K2 (pg. 153 of the PDF) and K7. (INIT,
> u
> On Apr 1, 2022, at 2:56 AM, Mark Huffstutter via cctalk
> wrote:
>
> Here is some pretty good information.
>
> https://archive.org/details/TNM_Glass_computer_memories_-_Corning_Electronics_20171206_0185
>
> Mark
Interesting stuff. When I saw Corning I thought glass fiber (optical pulse
When I looked at that ebay listing of "glass memory" it pointed me to another
item, https://www.ebay.com/itm/265623663142 -- described as "core rope memory".
Obviously it isn't -- it's conventional core RAM. Interestingly enough, it
seems to be three-wire memory (no inhibit line that I can see
> From: Brent Hilpert
>> ACLO is only used to trigger a 'power-failing' interrupt; CPU
>> operation is otherwise un-affected by ACLO (so the CPU can get ready).
>> DEC P/S's carefully sequence ACLO and DCLO such that on power-down,
>> ACLO is asserted first (to allow the CPU t
Wasn't some of this glass delay line memory used in early raster-scanned
computer video displays?
--Chuck
> On Apr 1, 2022, at 1:25 PM, Chuck Guzis via cctalk
> wrote:
>
> Wasn't some of this glass delay line memory used in early raster-scanned
> computer video displays?
I don't know about that one, but a delay line is a key component of a PAL
(European) system color TV receiver.
paul
On 4/1/22 10:27, Paul Koning wrote:
>
>
>> On Apr 1, 2022, at 1:25 PM, Chuck Guzis via cctalk
>> wrote:
>>
>> Wasn't some of this glass delay line memory used in early raster-scanned
>> computer video displays?
>
> I don't know about that one, but a delay line is a key component of a PAL
> (E
Oregon Status University constructed a general purpose computer (Nebula) in the
mid 60s that used Corning glass delay lines both to construct a 4k x 34 bit
main memory with an auxillary 2k Content Addressable Memory with 32 bits plus
some 'tag' bits.
Al archived a copy of the hardware manual o
On 2022-Apr-01, at 5:54 AM, Paul Koning via cctalk wrote:
>> On Apr 1, 2022, at 2:56 AM, Mark Huffstutter via cctalk
>> wrote:
>>
>> https://archive.org/details/TNM_Glass_computer_memories_-_Corning_Electronics_20171206_0185
> ...
> That Corning document is also interesting because of its compar
On 2022-Apr-01, at 10:52 AM, Chuck Guzis via cctalk wrote:
> On 4/1/22 10:27, Paul Koning wrote:
>>
>>> On Apr 1, 2022, at 1:25 PM, Chuck Guzis via cctalk
>>> wrote:
>>>
>>> Wasn't some of this glass delay line memory used in early raster-scanned
>>> computer video displays?
>>
>> I don't know
On 2022-Apr-01, at 6:02 AM, Paul Koning via cctalk wrote:
> When I looked at that ebay listing of "glass memory" it pointed me to another
> item, https://www.ebay.com/itm/265623663142 -- described as "core rope
> memory". Obviously it isn't -- it's conventional core RAM. Interestingly
> enoug
> On Apr 1, 2022, at 2:38 PM, Brent Hilpert via cctalk
> wrote:
>
> On 2022-Apr-01, at 6:02 AM, Paul Koning via cctalk wrote:
>
>> When I looked at that ebay listing of "glass memory" it pointed me to
>> another item, https://www.ebay.com/itm/265623663142 -- described as "core
>> rope memo
On 4/1/2022 11:51 AM, Paul Koning via cctalk wrote:
On Apr 1, 2022, at 2:38 PM, Brent Hilpert via cctalk
wrote:
On 2022-Apr-01, at 6:02 AM, Paul Koning via cctalk wrote:
When I looked at that ebay listing of "glass memory" it pointed me to another item,
https://www.ebay.com/itm/2656236
> On Apr 1, 2022, at 7:51 PM, Paul Koning via cctalk
> wrote:
>
> Neat looking stuff. It doesn't look like core rope memory in the sense of
> the AGC ROM, nor in the sense of the Electrologica X1. It looks more like
> the transformer memory used in Wang calculators that you documented in
> On Apr 1, 2022, at 3:38 PM, Joshua Rice wrote:
>
>
>
>> On Apr 1, 2022, at 7:51 PM, Paul Koning via cctalk
>> wrote:
>>
>> Neat looking stuff. It doesn't look like core rope memory in the sense of
>> the AGC ROM, nor in the sense of the Electrologica X1. It looks more like
>> the tr
Hey, I've got one of those somewhere (the delay line, not the terminal ;-)
)!
I do still use the cabinet as a desk, as well as a few parts here and
there; to think that today something like an Arduino nano can replace that
desk-sized cabinet containing a substantial power supply and a card cage
wi
On 2022-Apr-01, at 11:51 AM, Paul Koning wrote:
>> On Apr 1, 2022, at 2:38 PM, Brent Hilpert via cctalk
>> wrote:
>> On 2022-Apr-01, at 6:02 AM, Paul Koning via cctalk wrote:
>>
>>> When I looked at that ebay listing of "glass memory" it pointed me to
>>> another item,https://www.ebay.com/itm/2
On 4/1/22 16:17, Mike Stein via cctalk wrote:
Hey, I've got one of those somewhere (the delay line, not the terminal ;-)
)!
I do still use the cabinet as a desk, as well as a few parts here and
there; to think that today something like an Arduino nano can replace that
desk-sized cabinet containi
> On Apr 1, 2022, at 5:13 PM, Brent Hilpert via cctalk
> wrote:
>
> On 2022-Apr-01, at 11:51 AM, Paul Koning wrote:
>>> On Apr 1, 2022, at 2:38 PM, Brent Hilpert via cctalk
>>> wrote:
>>> On 2022-Apr-01, at 6:02 AM, Paul Koning via cctalk wrote:
>>>
When I looked at that ebay listing
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