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Forum Index : Microcontroller and PC projects : Odd one here
| Author | Message | ||||
Quazee137 Guru  Joined: 07/08/2016 Location: United StatesPosts: 600 |
Last night I built 10 boards and had forgot that these where ok and ones and not the ones with the bad transistor silk screen from last week. As I was testing they all worked fine but then I saw the box of the other ones and had to bread board the basic circuit wondering why they did work. As it should be  The test I did.  Now why do the S9014's work with E-C switched around? Even did all the basic transistor readings and they matched with E-C swapped go figure. |
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palcal Guru Joined: 12/10/2011 Location: AustraliaPosts: 2006 |
I seem to remember Grogster mentioning this, it is explained here "It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all" |
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| PeterB Guru Joined: 05/02/2015 Location: AustraliaPosts: 655 |
Transistors (NPN & PNP) can have their C & E connections reversed with no problems. The gain will be less but they bottom to a lower voltage so the technique was often used to switch analog voltages. Peter |
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Grogster Admin Group  Joined: 31/12/2012 Location: New ZealandPosts: 9754 |
I did? Smoke makes things work. When the smoke gets out, it stops! |
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| lizby Guru Joined: 17/05/2016 Location: United StatesPosts: 3470 |
>matched with E-C swapped go figure Mentioned in the Errata in bigmik's 170 backpack pdf, with a link to this thread: PicoMite, Armmite F4, SensorKits, MMBasic Hardware, Games, etc. on fruitoftheshed |
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