2010/04/22

circuit diagram


I find this hilarious because I worked on and with electrical schematics every day for 15 years. The holy water and "magic smoke" are genius. (You know, if that smoke escapes, the device will cease to function.)

There are usually various notes scattered about these diagrams. I like the "GLUE OPEN" note and, of course, the 50V supply with both sides tied directly to GND. Sometimes you get some seriously screwy shit from the engineers - but rarely like this. For example, I've never been asked to add scarab beetles to a board, but one engineer was especially fond of capacitors. Every revision of the design added more caps. Another guy - a fine engineer with a sense of humor - let an inside joke slide too long; he had designed an intrusion detector so incredible that we would "need an extra wallet to carry all the money" from sales of the product.

So, all of the drawings had "EXTRA WALLET" written in the title block as a part of the product name. And then, eventually, when the product was ready to market, a customer happened to notice the title block. "What does 'Extra Wallet' mean?" All the drawings had to be revised. We all had a good laugh over that at Bill's expense.

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