Especially when you can find an 8M version, cheap. I bought some M25P80-VMW6G on Ebay for 12.85 cents, each
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11 years ago
Scope day
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11 years ago
That's really amazing, isn't it. Back in the day, I paid $10 for a 2102 static ram, 1Kx1 CMOS.
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11 years ago
A S-100 1KB RAM card was over $1,000 when it first hit the market, and they were bragging about how much better it was than the existing RAM on the CPU card. All 256 bytes.
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10 years ago
Tom,
Are you still looking for this?
I have acquired a (faulty) 11802 with executive processor firmware V10.10 and TBC firmware V10.12. I've just backed up the EPROMs so if you would like copies give me your email address.
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10 years ago
I'd be very interested in copies, if you could send it to the address below.
Thanks
Phil Hobbs
-- Dr Philip C D Hobbs Principal Consultant ElectroOptical Innovations LLC Optics, Electro-optics, Photonics, Analog Electronics 160 North State Road #203 Briarcliff Manor NY 10510 USA +1 845 480 2058 hobbs at electrooptical dot net http://electrooptical.net
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10 years ago
Sure,
snipped-for-privacy@verizon.net . Can I send them to KO4BB? He keeps a repository of test equipment firmware.
Do you need any help with the 11802?
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10 years ago
What's the error code?
-- John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators
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10 years ago
It had nine errror codes on arrival, I've got it down to one - T2341 (Time base/Strobe/Ref Clock). I'll probably just leave it at that and store it as a donor unit for my working 11802.
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10 years ago
Have you changed out the two battery backed ram chips? You can measure the voltage between pin 14 and 28 and it should be more than 2+ volts. If you need a replacement, I can give you a Mouser part number that works great.
511-M48Z3570PC1