After getting the #Commodore#C64 and #C128 running again, the next device to repair is the #C1571.
It had #corrosion and #rust on the main board and the power supply is beyond repairworthiness. I'd replace the latter with a #meanwell RD-35 with 5 and 12 volt output.
One #diode was rusty, a few traces needed #cleaning and five #resistor looked bad. Hope the black hybrid chip is still okay.
Sadly, the lower read head seems to be broken, my work might've been in vain. #floppydrive#retrocomputer
To make absolutely sure that the 6502 #processor is defective, I built a #NOP test #circuit on a #breadboard with a 100kHz #NE555 clock and a couple of LEDs on the address lines.
A known working 6502 looks fine, I can clearly see the higher address lines counting up (I accidentally inverted the LEDs).
The one from the 1541 doesn't show any activity. Only address lines A0 to A3 look normal on the oscilloscope. #retrocomputing
➡️ Consumes 4% less #energy than its predecessor, the i7-13700H
➡️ single-core performance roughly identical to the i7-13700H
➡️ for general or #computing-intensive #work, it offers an excellent price-performance ratio
Jag behöver tips och råd av tech-kunniga!
Jag ska skaffa en ny (men billig) #laptop efter några år med chromebook, som blev alltför begränsande. Jag tänker installera #Linux som dual-boot och köra sånt som gimp, eclipse, och ev en lamp där. Jag är alltså inte helt bortkommen när det gäller sånt, men desto mer lost när det handlar om #hårdvara. Vad behöver jag? Kan jag komma undan med 5000 kronor eller ännu mindre? Kan jag göra något fynd på mellandagsrean? #pc#processor#ram
Boosta gärna!
SemiAnalysis has the bear case for high numeric aperture (high NA) lithography, a next-gen version of etching with extreme ultraviolet light for finer details on processor electronics. TL;dr 2-pass low NA is a better approach for several years. Gloomy perspective for ASML, Intel, and other fans. https://www.semianalysis.com/p/asml-dilemma-high-na-euv-is-worse #Processor#Intel#ASML
24 years ago today in 1999, AMD shook up the market with the introduction of the Athlon processor!
The Athlon was AMD's first x86 processor to compete with Intel's Pentium III, and it was a huge success. It was significantly faster than Intel’s flagship Pentium III, which ran at a top speed of 600MHz.
These power-packed marvels weren't just chips – they were engines for your computer dreams, propelling us into a new era of computing greatness!