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/diy/ - Do It Yourself

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File: 13 KB, 456x422, One Transistor Radio Circuit Diagramw.gif [View same] [iqdb] [saucenao] [google]
148747 No.148747 [Reply] [Original]

Post circuit diagrams of easy and/or useful things for a hobbyist to make. Links to explanations of the diagram are welcome.

Transistor Radio:
http://www.circuitlab.org/2011/07/circuit-one-transistor-radio-schematics.html

>> No.148750
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148750

Some cool small projects,

http://www.circuitstoday.com/tag/most-popular-circuits

>> No.148781
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148781

>> No.148803
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148803

for when your mic is too soft to hear.

>> No.148805
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148805

>> No.148857
File: 134 KB, 740x952, circuit_diagram.png [View same] [iqdb] [saucenao] [google]
148857

>> No.148884
File: 51 KB, 1635x882, Z80SBC.png [View same] [iqdb] [saucenao] [google]
148884

>> No.148886
File: 6 KB, 500x295, circuit diagram.gif [View same] [iqdb] [saucenao] [google]
148886

>>148857
>omit short on 240V if you're a wimp

I lol'd more than I should have.

>> No.148887
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148887

3-component boost converter. It's being used to drive an LED here, but the circuit can be used for other things with some modifications. I've seen one used to drive a fluorescent bulb off a D-cell.

>> No.148904

>>148887
Is that a jule theif?

>> No.148907
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148907

>>148857

>> No.148944
File: 4 KB, 458x243, 555 Timer Tester.gif [View same] [iqdb] [saucenao] [google]
148944

Very much monitoring this thread, here is a 555 timer tester

>> No.148961
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148961

transistor headphone amp. make one for each side.

>> No.148977

I wish I could understand these. Does someone know a page tutorials for total newbs?

>> No.148987

>>148977
http://www.allaboutcircuits.com/

>> No.148989

>>148987
Thank you muchly.

>> No.149104

We need less mathematics, more electronics

>> No.149110
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149110

making circuits using copper nails and a schematic glued to a piece of wood.

>> No.149126

>>149110
That's a pretty cool idea, actually. You could make an electronics kit for someone who doesn't know much about electronics. Easy to assemble, teaches them soldering and schematic reading all at the same time, and none of the possible confusion (for a newbie, at least) of having to flip a piece of perfboard upside down to make connections.

>> No.149127

>>149110
that's actually badass

>> No.149214

>>149126
Where should one begin when wanting to learn these skills?

>> No.149441

>Get IC from Radioshack (I think it was a OP-Amp)
>Try to use
>Dunno which pins are which
>Is it upside down?
>To scared to use it in case I torch it and have to buy another one.

I feel stupid.

>> No.149456

>>148884
MY GOD MAN!, what's this voodoo!!?

Persistence of vision display?

>> No.149458

>>149126
>You could make an electronics kit for someone who doesn't know much about electronics

Print the diagram on a printer. Lay the paper on a piece of peg board or woodblock with holes drilled. Place special pegs with at each connection point. The pegs have clips/connectors so you can easily attach/remove parts.

Any newbie can print a diagram on his printer and build a circuit in under 5 minutes. It gives hole new meaning to the word "printed circuit board."

>> No.149557

>>149441
Look up the datasheet.

>> No.149622

>>149441

And look at the top of the chip once you have the datasheet. It should have a marking on end up, something like a dot, or a notch cut into it, or perhaps a corner missing. Most of the time the datasheet will show the marking, and that allows you to orient the chip to know which pins are which.

>The more you know.

-and if it's a fairly generic part like a 555 timer the pins should be the same from manufacture to manufacture.

>> No.149662

>>149456
Could be, but otherwise it's just a very basic, bare-bones Z80 based microcontroller circuit. In 32K of ROM and 32K of RAM you can do a shit-ton of stuff.

>> No.149743
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149743

>> No.149746

>>149743
Wow. That's disgusting.

>> No.149757

>>149743
>bridge rectifier for an air-core inductor and a DPST

slut

>> No.149775

>>149743
>mfw any weight fluctuation will result in deformation of the scars

lolwimmin

>> No.149840

I'm going to start building guitar effect pedals. I live in the US, what site should I use to order quantities of components?

>> No.149845

>>149775
>thinking everyone gets fat or pregnant

/sage for off topic

>> No.149847

>>149840
http://www.mouser.com/
http://www.digikey.com/

>> No.149924

>>149845
>implying anyone has a body that never changes shape ever

not sage because I want others to be able to laugh at the wimmin

>> No.149960
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149960

lets you hear your remote.

>> No.149978
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149978

>>149924
>implying anyone has a body that never changes shape ever
>i.e. being American

Oh, I've got bad news for you.

>> No.149983

>>149978
>pants-on-head retarded

I think you misunderstood what I said.

>> No.149985

>>149983
I can't help the fact you're a fucking idiot.

/diy/ is turning into /b/ shit as each day goes on. Eventually, it'll be nothing but shitheads like you shitposting all over the place and not one single coherent post. It'll look like /v/ where half the posts aren't even board related. You are causing it. Fuck you.

>> No.149986

>>149985
>I can't read.
>It's your fault.

You were just in a buttmad-fueled hurry and were itching to throw some more insults my way. I forgive you. We all make mistakes, friend.

>> No.149990

>>149985
/diy/ days are numbered. moot said at the very start that if this board becomes trash like the other boards, he'll delete it completely. so enjoy while you can.

>> No.149995

>>149985
>You are causing it.
>mfw you could have easily ignored every post I made and not replied to them

sage because I have no face

>> No.151345

>>149995
>>149990
>>149986
>>149985
>>149983
>>149978
>>149924
>>149845
>>149775

fullretard.jpg.exe.avi.wav.gif.bin

>> No.151377

>>151345
>bumping 2 day old dying thread to troll

Fuck you dude.