[cctalk] Re: Bubble Memory
Super... George Sent from my iPhone geo...@rachors.com > On Oct 29, 2022, at 10:21 PM, Eric Smith via cctalk > wrote: > > On Thu, Oct 20, 2022, 23:29 George Rachor via cctalk > wrote: > >> I remember a bubble memory card being advertise for the Apple ][ but never >> saw one. >> >> Were they ever made? >> > > Yes. I have the Helix Labs card.
[cctalk] Re: Bubble Memory
On Thu, Oct 20, 2022, 23:29 George Rachor via cctalk wrote: > I remember a bubble memory card being advertise for the Apple ][ but never > saw one. > > Were they ever made? > Yes. I have the Helix Labs card.
[cctalk] Re: Bubble Memory
On 2022-10-23 7:25 a.m., Alexander Schreiber via cctalk wrote: As a foreigner myself: please don't do that. Fill in the forms correctly and be done with it. I've seen this a lot with chinese sellers - utterly unasked for, mind you. Item declared as something _completely_ different, with a declared price usually in 1..5 USD rangem, even if I paid USD 100+ for it. The one case where the declared item type came closes to the actual item was a laser pointer that was declared as a flashlight. Still not worth it. I suspect the US government is the real problem. Ever since they started FREE TRADE with Canada, Exporting out the country has become a real night mare, and getting worse, other than books, for small orders. I need $2 part from ebay and $80 shipping? My mattress popped a spring Friday night, so I need to get a new bed stuff, from the local furniture place. Half the stuff was Online Only, and like $200 shipping. Don't people keep some inventory in stock any more? Free delivery if using our credit card, other wise $100 in town. How much for two gorilla's, 3 bananas and truck. I don't mind paying shipping for the BIG STUFF, you expect that. Ben. PS: I ordered off Amazon, a new mattress in Monday, a new bed frame Thursday.
[cctalk] Re: Bubble Memory
On Fri, Oct 21, 2022 at 02:50:49PM -0500, Doc Shipley via cctalk wrote: > On 10/20/22 20:15, Doug Jackson via cctalk wrote: > > Sigh... > > > > Yet another American seler who doesn't understand how simple overseas > > shipping is. > > > Oh, we understand, we really do. We also get really tired of strangers > asking us to lie, on paper, to foreign government agencies. As a foreigner myself: please don't do that. Fill in the forms correctly and be done with it. I've seen this a lot with chinese sellers - utterly unasked for, mind you. Item declared as something _completely_ different, with a declared price usually in 1..5 USD rangem, even if I paid USD 100+ for it. The one case where the declared item type came closes to the actual item was a laser pointer that was declared as a flashlight. > We understand why that's "necessary". We understand that customs duties in > most other countries are insane. We understand that the chances of getting > caught twiddling our declaration is minimal, and the odds of prosecution are > even less. Still not worth it. > NONE of that makes taking that risk tenable for a person who hasn't earned > my trust. Agreed. > My main, issue, though, is the response from prospective recipients when I > say I won't falsify customs forms. It's usually something like "Don't be > such a wimp." "Have you tried not being a criminal?" would be an appropriate response. > That's the behavior that makes me REALLY want not to ship overseas. Sorry for that trouble, not all are like that. Kind regards, Alex. -- "Opportunity is missed by most people because it is dressed in overalls and looks like work." -- Thomas A. Edison
[cctalk] Re: Bubble Memory
On Fri, Oct 21, 2022 at 08:44:41PM -0500, Jim Brain via cctalk wrote: > On 10/21/2022 4:55 AM, Peter Corlett via cctalk wrote: > > On Fri, Oct 21, 2022 at 12:15:02PM +1100, Doug Jackson via cctalk wrote: > > [...] > > > Yet another American seler who doesn't understand how simple overseas > > > shipping is. > > As far as I can tell, the price to ship anything overseas from the USA is > > twice the value of the item, plus fifty bucks, plus ten bucks per ounce. > > Whether USPS actually charge this much or it's just sellers trying it on, I > > neither know nor care. > > > > So I don't bother even looking at American sellers any more. > > > I ship all the time all over the world, and overseas shipping is a bit > pricey, but I don't think it's quite that bad. I think that's an eBay > thing. > > As another posting noted, though, requests to modify customs forms is a > problem. The most vocal concerns I've heard are folks who buy outside the > US, have t pay customs, and then complain to me that I should have shown the > price of the item including customs and VAT and such costs. I agree it'd be > nice, but it's untenable at times to pre-figure those fees. That IMHO a bit unreasonable to expect, given that every country has different rules and rates when it comes to applying VAT and customs fee to imported goods. A note along the lines "For international shipping, VAT and customs fees on import may apply" should frankly be sufficient. Kind regards, Alex. -- "Opportunity is missed by most people because it is dressed in overalls and looks like work." -- Thomas A. Edison
[cctalk] Re: Bubble Memory
I was not referring to you Jim. Your message was helpful unlike some of the others. On Sat, 22 Oct 2022, 12:39 pm Jim Brain via cctalk, wrote: > On 10/21/2022 9:46 PM, Tom Hunter via cctalk wrote: > > It would be better to stay on topic and avoid the hostile rhetoric of > some > > of the posts. > > Um, I am. There were concerns about international shipping of this eBay > item, followed by some info on eBay international shipping, so I was > offering to help in general if folks need it, and noting that not > everyone requires so much to ship. > > Jim > >
[cctalk] Re: Bubble Memory
On 10/21/2022 9:46 PM, Tom Hunter via cctalk wrote: It would be better to stay on topic and avoid the hostile rhetoric of some of the posts. Um, I am. There were concerns about international shipping of this eBay item, followed by some info on eBay international shipping, so I was offering to help in general if folks need it, and noting that not everyone requires so much to ship. Jim
[cctalk] Re: Bubble Memory
It would be better to stay on topic and avoid the hostile rhetoric of some of the posts. Thanks Tom On Sat, 22 Oct 2022, 9:49 am Jim Brain via cctalk, wrote: > On 10/21/2022 4:55 AM, Peter Corlett via cctalk wrote: > > On Fri, Oct 21, 2022 at 12:15:02PM +1100, Doug Jackson via cctalk wrote: > > [...] > >> Yet another American seler who doesn't understand how simple overseas > >> shipping is. > > As far as I can tell, the price to ship anything overseas from the USA is > > twice the value of the item, plus fifty bucks, plus ten bucks per ounce. > > Whether USPS actually charge this much or it's just sellers trying it > on, I > > neither know nor care. > > > > So I don't bother even looking at American sellers any more. > > > I ship all the time all over the world, and overseas shipping is a bit > pricey, but I don't think it's quite that bad. I think that's an eBay > thing. > > I don't use PirateShip (though I am sure they are fine), as I have a > business shipping manager I use, that gets me preferred rates like > PirateShip. > > If you find something you'd like but the seller doesn't do > international, feel free to reach out. I'm not looking to make a > business of reshipping, but I started this business to help folks enjoy > their classic computing hobby, so I'm happy to help. > > As another posting noted, though, requests to modify customs forms is a > problem. The most vocal concerns I've heard are folks who buy outside > the US, have t pay customs, and then complain to me that I should have > shown the price of the item including customs and VAT and such costs. I > agree it'd be nice, but it's untenable at times to pre-figure those fees. > > Jim > > -- > > Jim Brain > br...@jbrain.com > www.jbrain.com >
[cctalk] Re: Bubble Memory
On 10/21/2022 4:55 AM, Peter Corlett via cctalk wrote: On Fri, Oct 21, 2022 at 12:15:02PM +1100, Doug Jackson via cctalk wrote: [...] Yet another American seler who doesn't understand how simple overseas shipping is. As far as I can tell, the price to ship anything overseas from the USA is twice the value of the item, plus fifty bucks, plus ten bucks per ounce. Whether USPS actually charge this much or it's just sellers trying it on, I neither know nor care. So I don't bother even looking at American sellers any more. I ship all the time all over the world, and overseas shipping is a bit pricey, but I don't think it's quite that bad. I think that's an eBay thing. I don't use PirateShip (though I am sure they are fine), as I have a business shipping manager I use, that gets me preferred rates like PirateShip. If you find something you'd like but the seller doesn't do international, feel free to reach out. I'm not looking to make a business of reshipping, but I started this business to help folks enjoy their classic computing hobby, so I'm happy to help. As another posting noted, though, requests to modify customs forms is a problem. The most vocal concerns I've heard are folks who buy outside the US, have t pay customs, and then complain to me that I should have shown the price of the item including customs and VAT and such costs. I agree it'd be nice, but it's untenable at times to pre-figure those fees. Jim -- Jim Brain br...@jbrain.com www.jbrain.com
[cctalk] Re: Bubble Memory
It is disappointing that you have encountered people like that. My most recent purchase was a couple of potentiometers for a Kenwood TS440 radio - made from true Unobtanium. from memory, I paid $100 USD for the auction and $70 USD for the shipping. They shipped through the Ebay global shipping system which is a rip off, but the people who filled in the forms were the global shipping people. The sellers experience was that they simply sent the package to an address in the states. My experience was that I got the item I was happy to pay for. I didn't complain about the shipping, because some people understand that sending stuff costs money.. The alternative that I use is a US on-shipping firm MyUSA.com, but I try not to use them anymore, as they had a meltdown because they thought I was trying to get them to onship an ITAR controlled item (A satellite antenna). They couldn't read the government's own doco, where part number xxx-xxx-xxx-xxx-01 was ITAR, while xxx-xxx-xxx-xxx-02 was not ITAR controlled. In that case, I got them to ship it back to the seller, who onshipped it (again at my expense) to a friend, who shipped it for me. My comment was simply based on my experience, as a purchaser who is quite happy to pay through the nose, because I understand that a plane flight to the States costs much more than anybodies shipping. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net On Sat, 22 Oct 2022 at 06:51, Doc Shipley via cctalk wrote: > On 10/20/22 20:15, Doug Jackson via cctalk wrote: > > Sigh... > > > > Yet another American seler who doesn't understand how simple overseas > > shipping is. > > > Oh, we understand, we really do. We also get really tired of strangers > asking us to lie, on paper, to foreign government agencies. > > We understand why that's "necessary". We understand that customs duties > in most other countries are insane. We understand that the chances of > getting caught twiddling our declaration is minimal, and the odds of > prosecution are even less. > > NONE of that makes taking that risk tenable for a person who hasn't > earned my trust. > > My main, issue, though, is the response from prospective recipients when > I say I won't falsify customs forms. It's usually something like "Don't > be such a wimp." > > That's the behavior that makes me REALLY want not to ship overseas. > > > Doc >
[cctalk] Re: Bubble Memory
On 10/20/22 20:15, Doug Jackson via cctalk wrote: Sigh... Yet another American seler who doesn't understand how simple overseas shipping is. Oh, we understand, we really do. We also get really tired of strangers asking us to lie, on paper, to foreign government agencies. We understand why that's "necessary". We understand that customs duties in most other countries are insane. We understand that the chances of getting caught twiddling our declaration is minimal, and the odds of prosecution are even less. NONE of that makes taking that risk tenable for a person who hasn't earned my trust. My main, issue, though, is the response from prospective recipients when I say I won't falsify customs forms. It's usually something like "Don't be such a wimp." That's the behavior that makes me REALLY want not to ship overseas. Doc
[cctalk] Re: Bubble Memory
On 10/21/22 05:55, Peter Corlett via cctalk wrote: On Fri, Oct 21, 2022 at 12:15:02PM +1100, Doug Jackson via cctalk wrote: [...] Yet another American seler who doesn't understand how simple overseas shipping is. As far as I can tell, the price to ship anything overseas from the USA is twice the value of the item, plus fifty bucks, plus ten bucks per ounce. Whether USPS actually charge this much or it's just sellers trying it on, I neither know nor care. So I don't bother even looking at American sellers any more. I don't know what it is like currently but the last time I looked at it it was ridiculous. I bought an item thru eBay.uk. 2 cute little ceramic animals that you put water in and hang on a radiator for humidity. Cost about $20 and free shipping. Postage on the package when it arrived was less than $5. One was broken. They agreed to replace it if I returned the broken one. UPS was the cheapest I could find but they wanted over $60 to ship to England. Needless to say, It was cheaper to just buy another one. I used to buy parts for a British car I owned from Rimmer Brothers in England. I never understood why they were cheaper (in cost and shipping) than any of the American suppliers. I would never consider shipping anything to Europe any more. bill
[cctalk] Re: Bubble Memory
On Fri, Oct 21, 2022 at 12:15:02PM +1100, Doug Jackson via cctalk wrote: [...] > Yet another American seler who doesn't understand how simple overseas > shipping is. As far as I can tell, the price to ship anything overseas from the USA is twice the value of the item, plus fifty bucks, plus ten bucks per ounce. Whether USPS actually charge this much or it's just sellers trying it on, I neither know nor care. So I don't bother even looking at American sellers any more.
[cctalk] Re: Bubble Memory
Actually Apple ][ Bubble memory….. I remember a bubble memory card being advertise for the Apple ][ but never saw one. Were they ever made? George Rachor > On Oct 20, 2022, at 5:55 PM, John Herron via cctalk > wrote: > > Are they supposed to look like that or are those worn/scuffed from age (or > just blurry picture)? > > > > > On Thu, Oct 20, 2022, 11:13 AM Douglas Taylor via cctalk < > cctalk@classiccmp.org> wrote: > >> On 10/19/2022 5:49 PM, Anders Nelson via cctalk wrote: >>> On eBay, 10pcs for $75: https://www.ebay.com/itm/394216367144 >>
[cctalk] Re: Bubble Memory
Pirate Ship (https://pirateship.com/) is a shipping service that offers discount rates through UPS and the USPS. I've been using it for several months now and it is a fantastic service. The website interface is easy and straightforward, the rates are competitive with eBay (if you are familiar with eBay shipping rates), and the customer service is really good. For anyone that does any kind of shipping, I highly recommend it. Opening an account is free. Sellam On Thu, Oct 20, 2022 at 8:23 PM ED SHARPE via cctalk wrote: > What's the story of this pirate shipping on kind of an interesting name > but I don't know what what kind of reputation do they have? thanks Ed# > > Sent from the all new AOL app for Android > > On Thu, Oct 20, 2022 at 6:39 PM, Sellam Abraham via cctalk< > cctalk@classiccmp.org> wrote: If you want I can buy them for you and > ship them to you. Since shipping is > free it'll only cost you for the overseas shipping, and I can get > good rates through PirateShip. > > If you're interested, e-mail me off-list and we'll work out the details. > > Sellam > > On Thu, Oct 20, 2022 at 6:24 PM Doug Jackson via cctalk < > cctalk@classiccmp.org> wrote: > > > Sigh... > > > > Yet another American seler who doesn't understand how simple overseas > > shipping is. > > > > Kindest regards, > > > > Doug Jackson > > > > em: d...@doughq.com > > ph: 0414 986878 > > > > Check out my awesome clocks at www.dougswordclocks.com > > Follow my amateur radio adventures at vk1zdj.net > > > > > > > > > > On Fri, 21 Oct 2022 at 03:12, Douglas Taylor via cctalk < > > cctalk@classiccmp.org> wrote: > > > > > On 10/19/2022 5:49 PM, Anders Nelson via cctalk wrote: > > > > On eBay, 10pcs for $75: https://www.ebay.com/itm/394216367144 > > > > > > > > =] > > > > -- > > > > Anders Nelson > > > > > > This reminded me that I have a qbus Bubble Tek (or something) board in > > > my collection. It emulates an RX01 device, however it uses the Intel > > > 7110 bubble memory and contains 1M bit of data. That is 128 KB! > > > > > > Formatted you get a 128KB RX01, and you thought the 256KB RX01 was a > > > small space to work in. > > > > > > Doug > > > > > > > > > > > > >
[cctalk] Re: Bubble Memory
What's the story of this pirate shipping on kind of an interesting name but I don't know what what kind of reputation do they have? thanks Ed# Sent from the all new AOL app for Android On Thu, Oct 20, 2022 at 6:39 PM, Sellam Abraham via cctalk wrote: If you want I can buy them for you and ship them to you. Since shipping is free it'll only cost you for the overseas shipping, and I can get good rates through PirateShip. If you're interested, e-mail me off-list and we'll work out the details. Sellam On Thu, Oct 20, 2022 at 6:24 PM Doug Jackson via cctalk < cctalk@classiccmp.org> wrote: > Sigh... > > Yet another American seler who doesn't understand how simple overseas > shipping is. > > Kindest regards, > > Doug Jackson > > em: d...@doughq.com > ph: 0414 986878 > > Check out my awesome clocks at www.dougswordclocks.com > Follow my amateur radio adventures at vk1zdj.net > > > > > On Fri, 21 Oct 2022 at 03:12, Douglas Taylor via cctalk < > cctalk@classiccmp.org> wrote: > > > On 10/19/2022 5:49 PM, Anders Nelson via cctalk wrote: > > > On eBay, 10pcs for $75: https://www.ebay.com/itm/394216367144 > > > > > > =] > > > -- > > > Anders Nelson > > > > This reminded me that I have a qbus Bubble Tek (or something) board in > > my collection. It emulates an RX01 device, however it uses the Intel > > 7110 bubble memory and contains 1M bit of data. That is 128 KB! > > > > Formatted you get a 128KB RX01, and you thought the 256KB RX01 was a > > small space to work in. > > > > Doug > > > > > > >
[cctalk] Re: Bubble Memory
If you want I can buy them for you and ship them to you. Since shipping is free it'll only cost you for the overseas shipping, and I can get good rates through PirateShip. If you're interested, e-mail me off-list and we'll work out the details. Sellam On Thu, Oct 20, 2022 at 6:24 PM Doug Jackson via cctalk < cctalk@classiccmp.org> wrote: > Sigh... > > Yet another American seler who doesn't understand how simple overseas > shipping is. > > Kindest regards, > > Doug Jackson > > em: d...@doughq.com > ph: 0414 986878 > > Check out my awesome clocks at www.dougswordclocks.com > Follow my amateur radio adventures at vk1zdj.net > > > > > On Fri, 21 Oct 2022 at 03:12, Douglas Taylor via cctalk < > cctalk@classiccmp.org> wrote: > > > On 10/19/2022 5:49 PM, Anders Nelson via cctalk wrote: > > > On eBay, 10pcs for $75: https://www.ebay.com/itm/394216367144 > > > > > > =] > > > -- > > > Anders Nelson > > > > This reminded me that I have a qbus Bubble Tek (or something) board in > > my collection. It emulates an RX01 device, however it uses the Intel > > 7110 bubble memory and contains 1M bit of data. That is 128 KB! > > > > Formatted you get a 128KB RX01, and you thought the 256KB RX01 was a > > small space to work in. > > > > Doug > > > > > > >
[cctalk] Re: Bubble Memory
Sigh... Yet another American seler who doesn't understand how simple overseas shipping is. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net On Fri, 21 Oct 2022 at 03:12, Douglas Taylor via cctalk < cctalk@classiccmp.org> wrote: > On 10/19/2022 5:49 PM, Anders Nelson via cctalk wrote: > > On eBay, 10pcs for $75: https://www.ebay.com/itm/394216367144 > > > > =] > > -- > > Anders Nelson > > This reminded me that I have a qbus Bubble Tek (or something) board in > my collection. It emulates an RX01 device, however it uses the Intel > 7110 bubble memory and contains 1M bit of data. That is 128 KB! > > Formatted you get a 128KB RX01, and you thought the 256KB RX01 was a > small space to work in. > > Doug > > >
[cctalk] Re: Bubble Memory
Are they supposed to look like that or are those worn/scuffed from age (or just blurry picture)? On Thu, Oct 20, 2022, 11:13 AM Douglas Taylor via cctalk < cctalk@classiccmp.org> wrote: > On 10/19/2022 5:49 PM, Anders Nelson via cctalk wrote: > > On eBay, 10pcs for $75: https://www.ebay.com/itm/394216367144 >
[cctalk] Re: Bubble Memory
On 10/19/2022 5:49 PM, Anders Nelson via cctalk wrote: On eBay, 10pcs for $75: https://www.ebay.com/itm/394216367144 =] -- Anders Nelson This reminded me that I have a qbus Bubble Tek (or something) board in my collection. It emulates an RX01 device, however it uses the Intel 7110 bubble memory and contains 1M bit of data. That is 128 KB! Formatted you get a 128KB RX01, and you thought the 256KB RX01 was a small space to work in. Doug
[cctalk] Re: bubble memory stable?
> I suppose it's the computer as well but I was surprised by how relatively > slow they are, considering that they're 'solid state'. It's largely the fact that bubble memory is inherently serial. You have to cycle through all the bits in a line until you get to the right location. -- personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckai...@floodgap.com -- BOND THEME NOW PLAYING: "The Living Daylights" -
[cctalk] Re: bubble memory stable?
Second that. I've got a PC-5000 as well (wanna buy it?) and have never had any issues with the bubble paks. I suppose it's the computer as well but I was surprised by how relatively slow they are, considering that they're 'solid state'. An interesting project, replacing them with SD cards or similar; way beyond my skills though. I assume the manual is out there somewhere? m On Sun, Oct 2, 2022 at 7:39 AM osi.superboard via cctalk < cctalk@classiccmp.org> wrote: > Hi Steve, > > the Sharp PC-5000 bubble memory is very reliable. It`s working flawless > on two machines I have. > > Bubble memory was used as well in some significant older machines, like > the Texas instruments Silent Terminals (around 77 I guess). And last > time I turned on the terminal, it worked perfectly still showing text in > memory, entered decades ago. So no worry. > > Thomas > > Am 02.10.2022 um 10:58 schrieb Steve Lewis via cctalk: > > How "stable" is bubble memory, over decades? > > > > There is a Sharp PC-5000 that may be available, I believe from 1983-1985 > > era, which is said to have bubble memory. But the owner can't find a > power > > cable, to verify if anything still works. > > > > I have older systems with ICs that are still working OK, but I was > > wondering thoughts on any risk associated with bubble memory? > (likelihood > > of not working at all, or being damaged in long distance shipping) > > > > Actually another thought, can any "normal" ICs be used to > > replace/substitute the bubble memory? > > > > Regards, > > Steve >
[cctalk] Re: bubble memory stable?
> How "stable" is bubble memory, over decades? > > There is a Sharp PC-5000 that may be available, I believe from 1983-1985 > era, which is said to have bubble memory. But the owner can't find a power > cable, to verify if anything still works. > > I have older systems with ICs that are still working OK, but I was > wondering thoughts on any risk associated with bubble memory? (likelihood > of not working at all, or being damaged in long distance shipping) > > Actually another thought, can any "normal" ICs be used to > replace/substitute the bubble memory? Bubble memory uses magnetic domains, so to a first approximation it's as "stable" as any other magnetic storage system. These domains tend to be relatively large by modern standards. The modules are invariably magnetically shielded in heavy coverings, and are shockproof. If it works it all, it probably works fine. I have a Texas Instruments Silent 700 Model 763 and so far no problems with storing and retrieving data on its bubble memory cards, even though this unit is well over 40 years old (here it is with my KIM-1 as a punch tape storage system: http://oldvcr.blogspot.com/2022/09/what-kim-1-really-needs-is-bubble.html ). There are no modern drop-in equivalents for bubble memory modules specifically. Bubble memory is inherently serial and requires additional drive circuitry. However, that doesn't mean someone couldn't make a unit that emulates the entire system and looks like a bubble memory storage device, naturally, just like any other disk emulator. -- personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckai...@floodgap.com -- Do you think I could buy back my introduction to you? -- Groucho Marx --
[cctalk] Re: bubble memory stable?
Hi Steve, the Sharp PC-5000 bubble memory is very reliable. It`s working flawless on two machines I have. Bubble memory was used as well in some significant older machines, like the Texas instruments Silent Terminals (around 77 I guess). And last time I turned on the terminal, it worked perfectly still showing text in memory, entered decades ago. So no worry. Thomas Am 02.10.2022 um 10:58 schrieb Steve Lewis via cctalk: How "stable" is bubble memory, over decades? There is a Sharp PC-5000 that may be available, I believe from 1983-1985 era, which is said to have bubble memory. But the owner can't find a power cable, to verify if anything still works. I have older systems with ICs that are still working OK, but I was wondering thoughts on any risk associated with bubble memory? (likelihood of not working at all, or being damaged in long distance shipping) Actually another thought, can any "normal" ICs be used to replace/substitute the bubble memory? Regards, Steve
