Somewhere around here I have an 1802 in a ceramic package. I should see if I can dig it up and exchange it with the plastic one in my framed COSMAC Super ELF.
will happily sell it to you for 1/10 of quoted price
How embarrassing to think that a modern micro SD card could kick that ancient module's sorry behind in capacity, power, size, weight, MTBF, maintainability, etc.
How embarrassing to think that a modern micro SD card could kick that ancient module's sorry behind in capacity, power, size, weight, MTBF, maintainability, etc.
More like a modern 8-pin serial EEPROM. That core module is only 4096 words by 18 bits, or just a little over 8 kilobytes at 400 KHz.
@localroger: You and I both got the EG grab bag of ICs recently, maybe a hundred ICs in there. Hang onto those and eventually the collection may be worth $10,000!
How embarrassing to think that a modern micro SD card could kick that ancient module's sorry behind in capacity, power, size, weight, MTBF, maintainability, etc.
Actually, given the number of SD cards that have become unusable on me over the past year or so I would say their MTBF is some millions of times worse than ferrite core store.
Depending on the size & nature of the nuclear blast, that particular warranty may be difficult to enforce and collect on. Somewhat like a parachute warranty.
I've seen internals of russian anti-aircraft missile (old model, trough). It was amasing - it had kind of analog "computer", without any transistors of vacuum tubes, all logic was done by magnetic amplifiers and switches!
Well.. if you took a bad photo it would turn out purple.
But most chips of that era would have lot number on the top , and date code along with the country of origin on the bottom. This one is missing the date code.
Depending on the size & nature of the nuclear blast, that particular warranty may be difficult to enforce and collect on. Somewhat like a parachute warranty.
A faulty liferaft is even harder to collect on. The parachute is most likely to land on land resulting in someone looking at the failure
erco
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-Tor
http://www.ebay.com/itm/USSR-Soviet-Russian-Military-Ferrite-Core-Memory-Stack-Cube-MANUAL-QUITE-RARE-/150928595047?pt=LH_DefaultDomain_0&hash=item23240b9867
will happily sell it to you for 1/10 of quoted price
How embarrassing to think that a modern micro SD card could kick that ancient module's sorry behind in capacity, power, size, weight, MTBF, maintainability, etc.
More like a modern 8-pin serial EEPROM. That core module is only 4096 words by 18 bits, or just a little over 8 kilobytes at 400 KHz.
Actually, given the number of SD cards that have become unusable on me over the past year or so I would say their MTBF is some millions of times worse than ferrite core store.
I used to put these up at 70-100 dollars each when I need some PayPal money. Would sell in minutes. Most buyers were Japanese.
The 4004's seemed to come through rather well. Guess it's that good old lead.
Need to take a better picture later.
Well.. if you took a bad photo it would turn out purple.
But most chips of that era would have lot number on the top , and date code along with the country of origin on the bottom. This one is missing the date code.
... and the old computers too.