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#1
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![]() Hey Old Timer: Yeah and in China they read from bottom to top, so the grounds would be at the top of the page and pointing up not down, and your B pluses would be where our ground would be. I have one word: ISO, says it all. and IEEE would be another word. Homebrew is thje battle ground for all those idea's. We're the young generation and we got sum thing to say. 73 Old Timer, de n8zu Of course, in Western culture we also read and write from left to right. I suppose we learn to look for the beginning of a story on the left side of the page. And of course, in some other cultures, people read and write from *right to left*. When people from these cultures become involved in radio, do they draw schematics (and build gear?) in the same direction Westerners do? Or do they work "backwards"? -- Doug Smith W9WI Pleasant View, TN EM66 |
#2
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On Oct 25, 5:41*am, sorry-spammers ""w9wi\"@(sorry-spammers)" wrote:
Yep, this is an off-the-wall question..... Paging through an old QST, it dawned on me that when schematics are drawn, usually the earliest stages are drawn on the left side of the diagram. *The speech input circuits for a voice transmitter; the antenna coupling and RF preamp (if any) for a receiver, etc., all seem to be drawn on the left. In the tube days at least (and to some degree with solid-state homebrew today) we seem to build the actual equipment the same way: the earliest stages are physically on the left side of the gear. Of course, in Western culture we also read and write from left to right. *I suppose we learn to look for the beginning of a story on the left side of the page. And of course, in some other cultures, people read and write from *right to left*. When people from these cultures become involved in radio, do they draw schematics (and build gear?) in the same direction Westerners do? *Or do they work "backwards"? -- Doug Smith W9WI Pleasant View, TN *EM66 I don't know about how other engineers from other cultures think about schematics and how they should be drawn, though I suspect that they are biased more by the idea that schematics are a whole different "language" than their native written language. Those engineers I have known from cultures where the written language "goes" in a different direction than mine still seem to draw schematics pretty much like I do. These days, I use computer programs to capture schematics, and they support multiple page hierarchy. The result is that I try to keep functional blocks on the same "page," but the order of the pages is not necessarily consistent from one project to the next. The left-to- right flow on a page is strongly influenced by the fact that symbols for parts like transistors and amplifiers that have an "input" and an "output" all come in with the input on the left and the output on the right. I have to rotate or mirror the symbol to have it go the opposite direction. Sometimes I indeed do just that: for example, I'll draw a differential amplifier stage with one transistor in the native orientation, and the one to its right in the mirrored orientation. I wonder if anyone would complain if I made a point of drawing a whole schematic package "backwards" with inputs on the right and outputs on the left... and maybe make things flow more from bottom to top... Cheers, Tom |
#3
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K7ITM wrote:
On Oct 25, 5:41 am, sorry-spammers ""w9wi\"@(sorry-spammers)" wrote: Paging through an old QST, it dawned on me that when schematics are drawn, usually the earliest stages are drawn on the left side of the diagram. The speech input circuits for a voice transmitter; the antenna coupling and RF preamp (if any) for a receiver, etc., all seem to be drawn on the left. For me, I draw schematics left to right mostly because I'm right-handed and don't want my hand to smear the fresh ink or pencil lead across my pretty picture ![]() Scott N0EDV |
#4
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"K7ITM" wrote in message
... On Oct 25, 5:41 am, sorry-spammers ""w9wi\"@(sorry-spammers)" wrote: I wonder if anyone would complain if I made a point of drawing a whole schematic package "backwards" with inputs on the right and outputs on the left... and maybe make things flow more from bottom to top... I would hope someone would mention it in your next design review. I have a couple of circuit books where the author spend a few pages mentioning how there is a marked difference in the understandability of schematics based on how they're drawn, particularly for things like differential pairs which, as you mentioned, people "expect" to be facing one another. It seems like your employer decided that all power buttons should go on the lower-level corner of equipment as well! |
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