Originally posted by rogue06
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"The man from the yacht thought he was the first to find England; I thought I was the first to find Europe. I did try to found a heresy of my own; and when I had put the last touches to it, I discovered that it was orthodoxy."
GK Chesterton; Orthodoxy
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Originally posted by lilpixieofterror View PostEven than, I don't think he's aware that electronics of the 60's and 70's are in some ways easier and in other ways harder, than modern ones. They are easier in the sense they were often made to be easier to repair or didn't have a computer program running inputs and outputs (therefore making it easier to follow the wiring along to where you needed to). They were harder in the sense that you often had relay's and vacuum tubes turn each other on and off and took up quite a bit more room.
Weren't transistors the genesis of 'solid state'? If so, they were definitely in most production by the '60's. I think vacuum tubes were on the way out by the mid to late Fifties if not earlier (most the things we had that used them were much earlier, '30's and '40's). You could still buy them readily because a number of older products that used them still worked well enough to be worth repairing."He is no fool who gives what he cannot keep to gain that which he cannot lose." - Jim Elliot
"Forgiveness is the way of love." Gary Chapman
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Originally posted by Teallaura View PostI had a transistor radio when I was three - I doubt many vacuum tubes were in production models by then ('68). I doubt they had been for a while, given that a transistor radio was affordable enough to be a gift for a small child by '68.
Weren't transistors the genesis of 'solid state'? If so, they were definitely in most production by the '60's. I think vacuum tubes were on the way out by the mid to late Fifties if not earlier (most the things we had that used them were much earlier, '30's and '40's). You could still buy them readily because a number of older products that used them still worked well enough to be worth repairing."The man from the yacht thought he was the first to find England; I thought I was the first to find Europe. I did try to found a heresy of my own; and when I had put the last touches to it, I discovered that it was orthodoxy."
GK Chesterton; Orthodoxy
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Originally posted by lilpixieofterror View PostDepends on the application that you're using them in. Vacuum tubes are still used today in a few applications due to various reasons (in the civilian world, they are used in radio transmitters and the military still uses them in some applications because they are less susceptible to inference from solar flares and EMP's). I also think they were still in use, in TV sets, up until the late 70's because I do remember my dad and my grandparents talking about how you used to have to replace tubes in TV sets and how you could buy replacement's at the store. I don't remember having to do this myself (most TV's had been replaced using ones without tubes, by the time I could remember anything).
tube tester.JPGThe first to state his case seems right until another comes and cross-examines him.
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Originally posted by Cow Poke View PostYeah, I remember as a kid (60's and 70's) running down to the local convenient store that had a tube tester. It was a box like a small desk with a bunch of places you could plug in the various types of tubes, and you looked up on a chart what tube number it was, then set all kinds of dials and switches, then pushed a button and it would tell you if the tube was good or bad.
I'm always still in trouble again
"You're by far the worst poster on TWeb" and "TWeb's biggest liar" --starlight (the guy who says Stalin was a right-winger)
"Overall I would rate the withdrawal from Afghanistan as by far the best thing Biden's done" --Starlight
"Of course, human life begins at fertilization that’s not the argument." --Tassman
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Originally posted by rogue06 View PostMy brother and I competed for the "honor" of doing it, which was quite frequently considered that my dad loved tinkering with old (and not so old) TVs. If the tube was bad there were all of these pigeonhole like slots with what seemed like a gazillion different types of tubes and you tried to find one that you could use to replace it with.
(Sometimes it was easier, because one of the tubes wouldn't glow at all, and the others did)The first to state his case seems right until another comes and cross-examines him.
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Originally posted by Cow Poke View PostYeah, I remember as a kid (60's and 70's) running down to the local convenient store that had a tube tester. It was a box like a small desk with a bunch of places you could plug in the various types of tubes, and you looked up on a chart what tube number it was, then set all kinds of dials and switches, then pushed a button and it would tell you if the tube was good or bad.
[ATTACH=CONFIG]10102[/ATTACH]"The man from the yacht thought he was the first to find England; I thought I was the first to find Europe. I did try to found a heresy of my own; and when I had put the last touches to it, I discovered that it was orthodoxy."
GK Chesterton; Orthodoxy
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Originally posted by Cow Poke View PostYup, and you just hoped like heck that the half dozen tubes you took to the tester were different enough that you would put them in the proper socket when you got back home. You didn't necessarily know WHICH tube was bad, so you had to take all of them out of the TV or radio or console stereo.
(Sometimes it was easier, because one of the tubes wouldn't glow at all, and the others did)"The man from the yacht thought he was the first to find England; I thought I was the first to find Europe. I did try to found a heresy of my own; and when I had put the last touches to it, I discovered that it was orthodoxy."
GK Chesterton; Orthodoxy
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Originally posted by lilpixieofterror View PostYou could have always used an ohmmeter to check.
An ohmmeter would only work when you knew what the expected resistance should be, or if you were checking for "closed" or "open".The first to state his case seems right until another comes and cross-examines him.
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Originally posted by lilpixieofterror View PostYou could have always used an ohmmeter to check.
I'm always still in trouble again
"You're by far the worst poster on TWeb" and "TWeb's biggest liar" --starlight (the guy who says Stalin was a right-winger)
"Overall I would rate the withdrawal from Afghanistan as by far the best thing Biden's done" --Starlight
"Of course, human life begins at fertilization that’s not the argument." --Tassman
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Originally posted by Cow Poke View PostActually, no, because the heater circuit is what caused the current to be allowed to flow from anode to cathode (or was it the other way around) and you had to have specific voltages on specific pins. The whole principle (which was used later in transistors) was to control a larger amount of electricity with a smaller amount.
An ohmmeter would only work when you knew what the expected resistance should be, or if you were checking for "closed" or "open"."The man from the yacht thought he was the first to find England; I thought I was the first to find Europe. I did try to found a heresy of my own; and when I had put the last touches to it, I discovered that it was orthodoxy."
GK Chesterton; Orthodoxy
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Originally posted by Cow Poke View PostAnd, since I'm a poopiehead, I'll point out that you probably meant VOM or multi-meter, because, technically, an ohmmeter only checks for resistance, not voltage or amps or anything else."The man from the yacht thought he was the first to find England; I thought I was the first to find Europe. I did try to found a heresy of my own; and when I had put the last touches to it, I discovered that it was orthodoxy."
GK Chesterton; Orthodoxy
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Originally posted by Cow Poke View PostAnd, since I'm a poopiehead, I'll point out that you probably meant VOM or multi-meter, because, technically, an ohmmeter only checks for resistance, not voltage or amps or anything else.
I'm always still in trouble again
"You're by far the worst poster on TWeb" and "TWeb's biggest liar" --starlight (the guy who says Stalin was a right-winger)
"Overall I would rate the withdrawal from Afghanistan as by far the best thing Biden's done" --Starlight
"Of course, human life begins at fertilization that’s not the argument." --Tassman
Comment
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While I remember vacuum tubes, my Dad never took a bunch out of a TV that I recall."He is no fool who gives what he cannot keep to gain that which he cannot lose." - Jim Elliot
"Forgiveness is the way of love." Gary Chapman
My Personal Blog
My Novella blog (Current Novella Begins on 7/25/14)
Quill Sword
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