dam never thought of this hobby as being that destructive / dangerous …
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Finished a power supply and although I was aware that LM317 and LM337 have different pinouts I managed to swap input and output…on both.
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and one of the output protection diodes was wrong as well, I wondered why the 337 immediately heated up.
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Update: I have been electrocuted. In related news, my power supply works!
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I think, unless your are writing this from beyond, you got electrified…
Most french people make the same error.
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I tried surface mount soldering for the 1st time last night. Made it to the 2nd component before I destroyed the board and threw everything in the garbage.
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or had an electric shock.
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The word has slowly lost its association with death or killing. I remember in the sixties English usage would extend to non-fatal wounding with electricity. The word “electrification” is actually of much older provenance and has a number of competing meanings that make it a poor choice for warning notices.
In parts of my home town, when you pass from an area of high Sunderland dialect to one where we speak a ditchwater-dull Northern English that can be understood outside a five mile radius of the speaker’s birthplace, there should be a sign reading: WARNING, DANGER OF ELOCUTION.
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Some day, I’ll remember that stripboard layouts are mirrored on the back side. Some day.
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been there done that .
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Thinking this would make a great badge. How did it happen?
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I think you may need to replace that.
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I bet on reversed power supply
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Reversed brain …
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Been there, done that…
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Also, 2N3906 differs from 2N3904 by only 2 parts in 3904, right?
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Just to be sure: do not put on your face mask ( your avatar suggest you are doing so all the time 
) when trying a circuit for the first time. I can often smell that something gets hot before I see any smoke (actually I’ve only seen smoke once when I on purpose put 220VAC on a 1/8 Watt 10 ohm resistor and the results were disappointing, electronics is nothing like what you see in the movies) , and I think I wouldn’t be able to when wearing a face mask.
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There are a number of really clever indoor fireworks, spark an smoke machines. Add a few relays, and you could have a synth session that looks like the bridge of the enterprise during almost every bloody battle. Warp speed but nae fusebox
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