The used a cassette recorder to store the photo and play it back. https://spectrum.ieee.org/first-digital-camera-history?fbclid=IwdGRzaAPVVKFjbGNrA9VS7mV4dG4DYWVtAjExAHNydGMGYXBwX2lkDDM1MDY4NTUzMTcyOAABHmbAC3KQ45zuuvHG-fgR6vTCncLee1hqvshLQ0ImklaCVZqVRjvVEz2FdmeY_aem_eXezm2tGP2Rnsz_HIO7IEQ
Archive for the ‘Electronic Components’ Category:
2025-11-26 How Many Books Could EUV Photolithography Put On A Chip??
The $200 million EUV photolithography machine from ASML takes about 18 seconds to expose a wafer. It can put an incredible amount of information on the chips. You’ve got to see this – I found that number of books difficult to believe!! It’s mind blowing!! 🤯🤯🤯 They said all the Harry Potter books, all the
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2025-10-06 Schematic Of On-Off Touch Switch, Latching
This circuit uses four BJTs – 3 NPN and 1 PNP high current to drive the load. It has two touch pads, one for On and one for Off. I don’t see any information about the power supply voltage or load current. Some maximum voltage and current should be given for the circuit as shown.
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2025-08-26 MOSFET Tester Is Not So Good
The average hobbyist should not rely on this tester because of the deficiencies listed below. Instead he or she should buy a transistor tester that can analyze the device and tell what the pin out is and polarity, N-channel or P-channel. Also it can tell if the device is a MOSFET or a regular power
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2025-08-23 Automatic Coil Winding Machine
https://www.facebook.com/vacuzmachinefactory/videos/1849900919208187/?mibextid=9drbnH&s=yWDuG2&fs=e
2025-08-10 Night Light Wastes Power Shunting Current From LEDs
This is the comment I left in Big Clive’s channel video. “I think this shunting current away from the LEDs is deceptive and fraudulent. They should be required to tell this in the instructions. In the US there are regulations governing vampire devices such as the AC adapters and their efficiency levels. Since they’re on
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2025-07-24 Gyrotron, 1 MW, Thales TH1507 For Stellarator
https://ieeexplore.ieee.org/document/8874589 Matt Undecided showed a photo of it.
2025-07-08 Full Restoration Of Old AM Transistor Radio
This is hard to believe. It’s a lot of work to do on a cheap AM radio. But it gives me a lot of ideas. I wonder how many hours it took to do this, we see it happening in nust a few minutes. https://www.facebook.com/restorationpretty/videos/591611740013679/?mibextid=9drbnH&s=yWDuG2&fs=e
2025-07-08 In 1929 The Superheterodyne Radios Made TRF Radios Obsolete
In the 1920s the TRF – tuned radio frequency – radios were hard to tune and their performance wasn’t very good. In 1929 the radio manufacturers started selling superheterodyne radios that had only one tuning knob, not several like the TRFs had. No more fiddling around with knobs to try to get good reception. Plus
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2025-06-21 Making AC Voltage Boost Transformer To Correct Overloaded Grid
Watch the last few minutes of this 18 min. YouTube video to see the advertising on the box that tells what it does. This is really tragic. This multiple tap voltage boost transformer has to be used because the Indian electric grid is so overloaded that they can’t depend on the AC voltage to be
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