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2026-05-31 How to properly tune the radio IFs for best sound quality

It is not a good idea to “peak” the IFs for maximum volume of a radio station. The radio should be aligned with a sweep generator connected to the oscilloscope. What you actually want is to tune the radio so the bandwidth looks flat topped with steep skirts. This gives your audio high quality. If you peak the IFs, you will sacrifice the higher audio frequencies from 4 to 8 kHz in order to get maximum volume. This might sound good for voice on the amateur band, it will not sound good on music on the AM broadcast band.

See this video about realigning the AM transistor radio.

https://www.facebook.com/reel/310462651524488?mibextid=9drbnH&s=yWDuG2&fs=e

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Carbon Engineering, Direct Air CO2 Capture Plant In British Columbia

Costs $

https://m.facebook.com/story.php?story_fbid=pfbid0hqLpQdqFspayQdxapDSMtGFpng5GeNhK1FA6nwJyxFSsS4kQwKr88J2tmFZjkwGsl&id=61578442530318&post_id=61578442530318_pfbid0hqLpQdqFspayQdxapDSMtGFpng5GeNhK1FA6nwJyxFSsS4kQwKr88J2tmFZjkwGsl&mibextid=CDWPTG

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2026-05-30 Margaret Hamilton, Apollo 1202 Error code, Software Engineering

Short bio of Margaret Hamilton, who coined the term software engineering and developed the software for the AGC – Apollo Guidance Computer.

https://www.facebook.com/story.php?story_fbid=pfbid033qv8ZvrxPXnePpMAZwdJZ4KusuUWxP1279o5RK67KfbtwnLFCD91kLDU4pyHjJu2l&id=61561797488597&post_id=61561797488597_pfbid033qv8ZvrxPXnePpMAZwdJZ4KusuUWxP1279o5RK67KfbtwnLFCD91kLDU4pyHjJu2l&mibextid=CDWPTG

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2026-05-27 Study found that most solar projects move forward with little opposition

2026-05-27 (Electrek article)
Study found that most solar projects move forward with little opposition.

https://www.facebook.com/100064672212764/posts/pfbid026vNCfqif6jugc5Gh7xWaueUDvFRtgfLYE9ZBN7tFShRHzrC9BXHgCipMafvX8zvBl/?mibextid=CDWPTG

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2026-05-26 Tesla’s unsupervised Robotaxi fleet has shrunk to only 20 active vehicles

Electrek article 😠
https://www.facebook.com/100064672212764/posts/pfbid06fd6bET3XApz6ydVPtPbC2JwrtHNZ6qwg8mBLgEpcxrpR9UMLTEBVkJa4WCMLoxul/?mibextid=CDWPTG

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2026-05-24 I Built A Signal Injector

“”I saw this signal injector kit so I built my modified version of it on a PCB. Notice that they used two PNP transistors and a positive ground, presumably to get pulses that were positive going. I used an astable multivibrator with negative ground like normal and I changed the output transistor to a PNP, 2N4403. This also gives positive going pulses. The pulse rep rate is about 2.8 kilohertz. The current drain on the 3V (two AA cells in series) is 0.24 milliamp. That’s low enough to use a CR2032 coin cell for the supply voltage. The small value output coupling capacitor makes the pulse very differentiated, in other words its width is narrow. I put a 0.1 microfarad capacitor in parallel with the 470 picofarad and it sounds a lot better using an earphone. The 470 picofarad by itself is barely audible and it’s just a hiss.

Update: I changed the output coupling capacitor from 470 pF to 3.9 nF.
I changed the .0047 uF to .01 uF.””

https://m.facebook.com/groups/ElectronicParts/permalink/3109674059221908/?ref=share&mibextid=NOb6eG

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2026-05-22 A study published in the journal Joule found that switching to renewable energy could save the world at least $12 trillion by 2050, compared with continuing to rely on fossil fuels

“”A study published in the journal Joule found that switching to renewable energy could save the world at least $12 trillion by 2050, compared with continuing to rely on fossil fuels. The analysis concluded that a rapid transition to clean energy would not only reduce overall energy system costs, but also deliver more energy to the global economy and expand energy access worldwide.

The researchers found that the costs of solar power, wind energy, battery storage, electric vehicles, and green hydrogen have fallen much faster than many traditional energy models predicted. As these technologies continue to scale up, their costs are expected to decline even further, making clean energy increasingly competitive with fossil fuels across more sectors of the economy.

According to the study’s fast transition scenario, a largely fossil free global energy system by around 2050 could provide about 55% more energy services than today while lowering long term energy costs. The findings challenge the long standing belief that moving away from fossil fuels would be more expensive than maintaining the current energy system.

The study also highlights that renewable energy can help reduce exposure to volatile fossil fuel prices, strengthen energy security, and support global climate goals.🌍⚡

#RenewableEnergy #CleanEnergy #SolarPower #WindPower #EnergyTransition #BatteryStorage #ElectricVehicles””

https://m.facebook.com/story.php?story_fbid=pfbid021Z7bdbFGNCExor7UkRzUx2JdCHWKQPYi947HUUPd3wNHMnU8BayVAFd6CbuWM7rKl&id=100093822948697&mibextid=ZbWKwL

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2026-05-21 On May 20, 2026, the UN General Assembly voted to support an opinion issued by the International Court of Justice – governments are obligated to address climate change

“”On May 20, 2026, the United Nations General Assembly voted 141 to 8 to support a historic opinion issued by the International Court of Justice, the world’s highest court. The opinion states that governments have legal obligations under international law to reduce greenhouse gas emissions, address climate change, and protect people from its growing impacts.

The landmark opinion was originally delivered by the court in July 2025. It affirmed that countries must cooperate to achieve meaningful emissions reductions and that failing to meet climate obligations could, in some cases, lead to legal consequences. The court also emphasized the need for stronger action to limit global warming and reduce reliance on fossil fuels.

The decision could have far reaching consequences worldwide. It may strengthen climate lawsuits against governments, increase pressure on countries to adopt more ambitious climate policies, accelerate investments in renewable energy, and encourage faster emissions cuts. Legal experts also say it could support future claims from communities and nations seeking accountability for climate related damages.⛽🚫””

#ClimateChange #ClimateAction #GlobalWarming #CleanEnergy #RenewableEnergy #NetZero #Sustainability #EnergyTransition

https://m.facebook.com/story.php?story_fbid=pfbid0t5mXEApSm1LmNz9Firk3Khi4JtumArvnuYZoYsENd4mMNphdqDvrK5n5M2GdjkvQl&id=100093822948697&mibextid=ZbWKwL

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For The First Time Ever, Wind And Solar Generated More Electricity Than Gas For An Entire Month

Wind and solar just hit a major global milestone: for the first time ever, they generated more electricity than gas for an entire month. April 2026 is now in the history books.

https://www.facebook.com/100064672212764/posts/pfbid0CQiAfVGrLBZSTCLzBrzCUYQoXeUvUv1catKuLeFkXP98Mc8ZyeqdfQu1NbPRBkJel/?mibextid=CDWPTG

In a first, wind and solar generated more power than gas globally in April 2026

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2026-05-17 Inch Fab Makes ICs In A Container

Inch Fab uses 4 inch wafers, which makes it much easier

https://www.facebook.com/100066647494924/posts/pfbid04gBYJxNxKVHsXefuxMjwY9YGmYwz4VuMNhbbTiprB8kpvXDVhyTRgB6Z3EgtNcerl/?mibextid=NOb6eG

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