In the 1980s my job at the college was installing, maintaining and repairing the datacom infrastructure not yet known as a network, consisting of hundreds of terminals connected to the mainframe and mini computers. We had a Honeywell Bull mainframe mostly for admin – student and class IT, and mini computers for student training, one
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“”Livestock, on top of all the GHG emissions, also takes up a lot of space. Between grazing land and the cropland required to grow their food, the current animal agriculture industry covers about 3.3 billion hectares of land, about a third of the habitable land on earth.”” https://www.rethinkx.com/blog/opportunity-for-reforestation
The earliest guitar amp I worked on was a small Ace Tone, back in the 1970s. My neighbor bought it, not working and asked me to get it running. This was apparently from a foreign country, probably Mexico because at was rated for 230 VAC. It had two tubes, a 12AX7 and a 12AU7, that
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It’s loud a few blocks away where people live. https://www.facebook.com/reel/1028811653000227/?mibextid=9drbnH
https://www.facebook.com/reel/4858854997680600/?mibextid=9drbnH&s=yWDuG2&fs=e
2026-07-15 The TA7642 (AKA ZN414) is a crippled IC. Because it has only 3 leads it can’t act like a normal IC that has an input, output, power and ground. The output has to come out of the power supply pin. It’s limited to only 2 or so volts. As a result this IC can’t
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2026-07-11 (US Energy Information Admin) America crossed 50 GW of grid-scale battery storage — California’s electricity prices have fallen 35% during evening peaks
2026-07-11 (US Energy Information Admin) America crossed 50 GW of grid-scale battery storage — California’s electricity prices have fallen 35% during evening peaks and Texas hasn’t had a repeat of its catastrophic 2021 grid failure https://www.facebook.com/groups/1904238066802628/permalink/2133716987188067/?ref=share&mibextid=NOb6eG
