Electronics > Beginners

Potentiometer Range

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Richard Crowley:

--- Quote from: ataradov on October 15, 2018, 04:25:24 pm ---
--- Quote from: rstofer on October 15, 2018, 02:16:48 pm ---Those air capacitors are rare and valuable.

--- End quote ---
I would argue the valuable part.
--- End quote ---
Valuable perhaps for people working on vintage circuits (i.e. using firebottles)
But yes, modern solid-state circuits don't depend on such vintage parts like those capacitors.

Nusa:

--- Quote from: ataradov on October 15, 2018, 04:25:24 pm ---
--- Quote from: rstofer on October 15, 2018, 02:16:48 pm ---Those air capacitors are rare and valuable.

--- End quote ---
I would argue the valuable part.

--- End quote ---

Agreed. The ebay value would probably be under $10. They generally outlive the devices they were used in, so besides takeouts, you can even find some parts stock from over 50 years ago, still in boxes.

They're simple enough that an amateur can specify and make their own, if they really want to. The how-to information is out there, if you look.

vidarr:
I am going to hide that air capacitor now -- that is R$40 here. Just kidding. But seriously, you could get shot for less than $10 here. Actually, you can get shot for free.

No, but seriously, I was waiting to think of something cool to do with it. Just nothing "steam punk". I broke my only nixie tubes and do not have any aviation goggles to wear.

I got a bunch of old stuff her from her dad. He was an electrical engineer. The problem is, my wife and her mom think it is all junk. They are throwing it away slowly. He has rooms and rooms full of stuff. There is nothing I can do. They won't let me touch anything. I looked into the rooms one day when I had access to the keys and I almost peed my pants how much cool stuff was there. I try not to think about it.

I got a vintage Syder amplifier that was the best stereo amp in all Brazil during the military dictatorship (ok, not best, only amp). There is more, but I want to post here some stuff another time about some project ideas I have from some of this stuff I was able to save.

vidarr:
Here is the Spyder. I took apart to clean and troubleshoot. Her dad cut the transformer out. Everything I have here that doesn't work has a broken transformer.

Notice the green and yellow wires and wrap. Green and yellow were the dictator's favorite colors. Everything had to have green and yellow or it was banned, confiscated and could not be sold. They told us green and yellow are the best and only colors in the world. I don't know why they told us in school that, it is totally obvious. That is why whenever you see Brazilains, everything is green and yellow.  :blah: :clap:

vidarr:
Bigger.

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