Archive for the ‘Electronics Books, documents, literature’ Category:

2021-12-08 Screwdriver Discharge Capacitor Test Question

This is one helluva test question. https://www.chegg.com/homework-help/questions-and-answers/15-end-screwdriver-used-discharge-10-microfarad-capacitor-producing-spark-large-instantane-q4497288 I don’t even want to read the answer!

2021-10-28 Joe Legal And Jose Illegal

The story of Joe Legal and Jose Illegal is rated false by Politifact; it’s full of inaccuracies and wrong information. https://www.politifact.com/factchecks/2020/mar/13/facebook-posts/post-comparing-joe-legal-and-jose-illegal-rife-ina/ The story: << Joe legal works in construction, has a Social Security number and makes $25.00 per hour with taxes deducted. Jose illegal also works in construction, has no Social Security number and makes

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2021-09-27 Millions Of Carbon Capture Machines

There are those who say that we have waited too long and that if we went to zero GHG emissions immediately, the CO2 and GHGs already in the atmosphere will cause the temperature to rise above the 1.5 degrees C, to more than 2 degrees. So yes, we need millions of machines or hundreds of

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2021-09-01 Global Warming And Extreme Sea Levels

Looks bad. https://www.nature.com/articles/s41558-021-01127-1

2021-08-31 US Electric Generation Sources

Electric generation in the US, 2020. This chart doesn’t tell the whole story. https://www.visualcapitalist.com/road-to-decarbonization-united-states-electricity-mix/

2021-03-27 Batteries Vs. Oil – Transport & Environment

This gives some important differences about well to wheel comparisons of BEVs and ICEVs. BEVs are much more efficient. Document (.PDF) is 2.4 MB. https://www.transportenvironment.org/publications/batteries-vs-oil-comparison-raw-material-needs

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2021-01-27 Report On Monopolized Energy Sector

A few big corporations are monopolizing the energy sector, and causing the US to lag behind when it comes to clean renewables, and maximizing profits at the expense of the consumer. https://www.renewableenergyworld.com/blog/new-report-sheds-light-on-americas-monopolized-energy-sector-and-how-we-can-fix-it/

2020-06-18 Michael Pupin & Patents

From the list of his patents in his wiki. Armstrong co-authored some patents. https://www.google.com/patents/US1416061

2020-06-01 Motorola HEP Catalog Transistors pp 10-12

These are scans of the specifications for most of the Motorola HEP line of replacement transistors. Germanium and Silicon. Pages 10, 11, 12.

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2018-09-02 Mims Mistakes In Audio Amplifier

From FB group Building Transistor Radios, 2018-09-02 I already see one mistake. On p.27, Audio Mixer. The R6 is only 1k. The voltage divider R5 and R6 will give a voltage less than 0.6 at Q1’s base, which means Q1 will not be forward biased enough and the circuit won’t work or else sound distorted.

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