Folks used to be true artisans

Started by Anonymous in sci.electronics.design3 weeks ago 7 replies

Look what hundreds of years of grassland creates. A two foot thick mat of soil. A farmers son sees some pottery and looks at a sat image...

Look what hundreds of years of grassland creates. A two foot thick mat of soil. A farmers son sees some pottery and looks at a sat image of his father's land plot and sees markers from another era. Amazing what folks used to do to buildings and patios, etc.


OT: Scifi Humor...

Started by Rick C in sci.electronics.design4 weeks ago 7 replies

A scifi series has two time travelers in a 2000 pickup truck when the near empty light comes on and they have to figure out how to get gasoline. ...

A scifi series has two time travelers in a 2000 pickup truck when the near empty light comes on and they have to figure out how to get gasoline. One asks "Were they aware at this time that Earth's supply of fossil fuel was nearing depletion?" The other replies, "They had been for 30 years, but it wasn't until 2061 that they finally..." and is cut off when the search device beeps.


stay warm and dry

Started by Anonymous in sci.electronics.design4 weeks ago 2 replies

https://www.sugarbowl.com/webcams Yikes. 18F on top, wind 50 MPH, snow 7 feet deep. There's a chance of an all-time December snowfall...

https://www.sugarbowl.com/webcams Yikes. 18F on top, wind 50 MPH, snow 7 feet deep. There's a chance of an all-time December snowfall total. -- I yam what I yam - Popeye


Bit rot in micro controllers?

Started by Joerg in sci.electronics.design4 weeks ago 154 replies

Just repaired our fridge when, according to Murphy's law, the next appliance became shaky. Our pellet stove has twice refused to be turned...

Just repaired our fridge when, according to Murphy's law, the next appliance became shaky. Our pellet stove has twice refused to be turned off. Unfortunately, instead of analog it's all buttons that are operated via port pins of a micro controller. Pressing several of those willy-nilly made the on/off button work, at least long enough to turn it off. When the circuit board is cold the bo...


Merry Christmas

Started by Anonymous in sci.electronics.design4 weeks ago 3 replies

Well... this post's holiday greeting is for the United States. But Merry Christmas to the rest of the world too.

Well... this post's holiday greeting is for the United States. But Merry Christmas to the rest of the world too.


Centigrade or Celsius ?

Started by Phil Allison in sci.electronics.design4 weeks ago 4 replies

Hi, I grew up using Fahrenheit, then centigrade and now Celsius. https://www.youtube.com/watch?v=rjht4oAByCI The true and whacky story....

Hi, I grew up using Fahrenheit, then centigrade and now Celsius. https://www.youtube.com/watch?v=rjht4oAByCI The true and whacky story. ..... Phil


Noel

Started by Robert Baer in sci.electronics.design4 weeks ago

Once upon a time, there was this small town, Bethlehem, in a desert area with little water. That is because there was no well. --...

Once upon a time, there was this small town, Bethlehem, in a desert area with little water. That is because there was no well. -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus


2nm tech node! This girl is so hot!

Started by Anonymous in sci.electronics.design4 weeks ago 15 replies

and smart too!

and smart too!


$161 oscilloscope

Started by John Larkin in sci.electronics.design4 weeks ago 53 replies

I was looking for something else and this showed...

I was looking for something else and this showed up: https://www.amazon.com/s?k=0751300436685&crid=21WX22FGW2XXG&sprefix=0751300436685%2Caps%2C262&re f=nb_sb_noss Amazing. Someone could set up a garage lab and do some serious stuff really cheap these days. -- If a man will begin with certainties, he shall end with doubts, but if he will be content to begin with doubts he shall


Low open loop gain from a mic preamp-why?

Started by amdx in sci.electronics.design4 weeks ago 36 replies

The only problem that I may have created is the transistor, I used BC547B with HFE of 200 to 450 vs BC549C with HFE of 420 to 800. All I had...

The only problem that I may have created is the transistor, I used BC547B with HFE of 200 to 450 vs BC549C with HFE of 420 to 800. All I had in my junk box. I built a low noise amplifier, original design was for a 30v supply, I chose to correct the values for a 15V supply. Designer does have a 12v version, my values are close.  I did set an emitter resistor to have equal clipping....


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