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The new Random Pictures Thread:

newmisty

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Nice one Tom. I had to do a double-take to make sure that second row of birds wasn't a Photoshop of the same bird very distinct contrast with all of their heads up and uniform in color and then he the only one with his bill down with the addition of the bright color and being by himself,quite a stand out
 

Unca Walt

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The "circle" is made of 2 sine waves. Each channel with a 90 degree phase difference plotted in XY mode.
I get what you're saying though.
Back in The Olden Days, that would have had folks hypnotized. I built my own O-scope... I cannot remember the name of the company that used to sell kits. I even built a color TV set.
 

Unca Walt

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newmisty

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Back in The Olden Days, that would have had folks hypnotized. I built my own O-scope... I cannot remember the name of the company that used to sell kits. I even built a color TV set.
Hey Unca? When did the olden days end IYO?
 

Unca Walt

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Hey Unca? When did the olden days end IYO?
IMO? Well... I invented some circuitry (such as a fuse that would blow/trigger 100 nanoamps <-- it detected dendrite growth)... and I invented electronic jewelry such as a pin in the shape of a passenger plane with the lights blinking, or an owl with his eyes blinking, blinking bow ties, etc. It was an astable multivibrator with colored diodes. And for Halloween, I invented a "people detector" from part of a junked TV set <-- If you got near it, there was a speaker that gave off a very loud buzz.

Also invented absolutely safe Christmas tree lights: A set of neon bulbs each of which was surrounded by "penny caps" that formed a flower. A string of 20 blinking flowers would be powered by a single battery.

Picture this painted silver and mated with seven others in a tight circle to form flower petals... with a neon bulb in the center:

1605476813420.png

1605477575318.png



Vaguely like this below, but mine was far nicer because the background was solid, not empty, and there would be 8 penny caps and just a simple wire pair like on any Christmas tree from light to light instead of the ugly base on this POC:
1605477005985.png


All of the above -- including an electronic battleship game (before the commercial one came out) <-- It used the kind of plugs telephone operators would use -- were made with discrete components. Three-legged transistors, discrete capacitors and resistors and diodes.

Meanwhile, I was making myself obsolete by designing microchips.

So, for me, The Olden Days was back before the PS/2 came out and changed the world. Nowadays, components are designed as specific-function grouped stuff: resistors/caps/diodes/yada all on one piece of silicon.

No more birchbark canoes -- everybody has Ski-Doos
 
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newmisty

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Just came across a picture I took years ago in San Francisco, on my 35mm Pentax k1000.
佛光

20201115_150027~2.jpg
 
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EricTheCat

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IMO? Well... I invented some circuitry (such as a fuse that would blow/trigger 100 nanoamps <-- it detected dendrite growth)... and I invented electronic jewelry such as a pin in the shape of a passenger plane with the lights blinking, or an owl with his eyes blinking, blinking bow ties, etc. It was an astable multivibrator with colored diodes. And for Halloween, I invented a "people detector" from part of a junked TV set <-- If you got near it, there was a speaker that gave off a very loud buzz.
Fun stuff. I have a special place in my heart for LEDs.

Been tinkering a bit lately with logic circuits and LEDs. Then I decided to look at some old boards I saved from being recycled at work. When I saved them it was mostly so I could pull any switches, resistors, capacitors, basic stuff. It has(/had) a pair of interesting writable 32K CMOS ICs. So I pulled one out today to experiment with.

For no good reason and inspired a bit by a video on youtube by Ben Eater, I put together this circuit that can read and write to this CMOS chip, then went ahead and programmed in the addresses of 0 through 9 to values that correlate to the digits on a 7 segment LED display to show numbers. The dip switches control the address being displayed or written to. The switch on the lower right puts the chip in to read or write mode and the button on the left writes to the address when pushed and in write mode. No power switch. If the voltage goes below 2V I lose all those values! :D Yeah, yeah, maybe I should get some EEPROMs.

The row of LEDs displays the individual bits. I like how the binary of 7 happens to match up in the order of the LEDs on the display to show 7.

CMOS-Circuit-2020-11-17-Img_9162S.jpg
 

Goldhedge

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What did you use to interface with and program the ic?

I haven’t messed with this stuff for a couple decades.
 

EricTheCat

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What did you use to interface with and program the ic?

I haven’t messed with this stuff for a couple decades.
I used the circuit itself. I used the dip switches to set the address then with write mode enabled I wired positive directly to the IO pins which I wanted to be set high then clicked the write button. Completely manually programmed byte by byte (just 16 bytes, 0-F).
 

Goldhedge

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I used the circuit itself. I used the dip switches to set the address then with write mode enabled I wired positive directly to the IO pins which I wanted to be set high then clicked the write button. Completely manually programmed byte by byte (just 16 bytes, 0-F).
That's a labor of love...

In electronics school we used these 8"x8" square boxes to machine code each line.
I think 8088's?

I wish I had one of those today!
 

Goldhedge

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White Ibis

Screen Shot 2020-11-18 at 8.01.14 AM.png
 

newmisty

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engineear

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Just figured out I can post bigger next time

1. Bisbee High School..IIRC the only high school with 4 entrances, all on a different level.
2,3,4,5...parking is a premium
6. Tom Mix memorial. Huge Silent movie idol, on way to Bisbee
7. My 98 50th Anniversary Land Rover Discovery...(taking offers, can deliver)
8. Saw this getting before we went off road
9. Saw this coming back from off road...old phart at the wheel
10. In the neighborhood
11. Around the house Desert Rose
12. FINALLY, after 10 years and different plants, got one to take hold, Plumeria, from Kauai
13. Backyard, tree thinned out and new sod
14. Sable on morning watch
15. Sable on food watch
16. Snug, spoiled
 

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newmisty

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Good friend just sent me pictures of this mornings sunrise on the Big Island(Hawaii). Incredible!
IMG_6575~2.jpg

IMG_6573~2.jpg
 

newmisty

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newmisty

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^ If I am ever asked what it is I am most grateful for, it would have to be the capacity to appreciate beauty. Glad I might not be alone.
:beer:
 

Goldhedge

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newmisty

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No, found it online... Probably should have mentioned that...
That's a good thing because it's a testament to your skills/gear
 

Goldhedge

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That's a good thing because it's a testament to your skills/gear
If you're on FB check out this group: Colorado Bird Photography

There are some awesome shooters there. The best pics are from one guy using a Sony alpha9. I figure he's got at least $7k invested in gear.
 

newmisty

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If you're on FB check out this group: Colorado Bird Photography

There are some awesome shooters there. The best pics are from one guy using a Sony alpha9. I figure he's got at least $7k invested in gear.
I ditched it years ago
 

Goldhedge

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Not exactly a picture, but you'll get the picture....

 

mtnman

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Goldhedge

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If that were my snake, it just volunteered to be boots.
Boots, belts, and hatbands...

You see all the blood dripping off her hand??
 

Goldhedge

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Goldhedge

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Screen Shot 2020-11-25 at 10.40.01 AM.png
 

Uncle

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Excellent image of your hunting partner on full-tilt, playing fetch with a leg.

Golden Regards
Uncle
 

hammerhead

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Fun stuff. I have a special place in my heart for LEDs.

Been tinkering a bit lately with logic circuits and LEDs. Then I decided to look at some old boards I saved from being recycled at work. When I saved them it was mostly so I could pull any switches, resistors, capacitors, basic stuff. It has(/had) a pair of interesting writable 32K CMOS ICs. So I pulled one out today to experiment with.

For no good reason and inspired a bit by a video on youtube by Ben Eater, I put together this circuit that can read and write to this CMOS chip, then went ahead and programmed in the addresses of 0 through 9 to values that correlate to the digits on a 7 segment LED display to show numbers. The dip switches control the address being displayed or written to. The switch on the lower right puts the chip in to read or write mode and the button on the left writes to the address when pushed and in write mode. No power switch. If the voltage goes below 2V I lose all those values! :D Yeah, yeah, maybe I should get some EEPROMs.

The row of LEDs displays the individual bits. I like how the binary of 7 happens to match up in the order of the LEDs on the display to show 7.

View attachment 189476
If I had any clue of what you just said, I doubt I would be less impressed.
 

newmisty

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Pictures of pictures i took years and years ago. Mozart's home on our high school band's European tour my sophomore year. We went every 2 years freshmen excluded. We sold wreaths to help differ costs and my grandparents paid what that didnt cover.

20201115_145829~2.jpg


------------

The whale i captured during a whale watch off of Bar Harbor, Maine. (Net pic to set scene)


We were most fortunate that's not long after getting out there did a mother humpback and her calf say hello and give us a little display. It was incredible. . That whale knew exactly what we were doing and knew we were no threat. You could then sed her motion to the baby as if to explain what we were before giving us a tail slap on the water after breaching high in the air. A very special event that light us up light like StOnEy on the job.
i was taking pictures with my k1000 and captured this one and a better one that of course I cannot find right now. It's by far the best photograph I've taken imo. Any way this one isn't too bad.

20201115_145933~2.jpg