Electronic Circuit Diagrams Archives
please help me with electronic question?
Refer to input wavelength as shown in the diagram,draw the output wavelength according to input wavelength. Name the output wavelength and describe the function of diod in this circuit.
Please refer to this site to look at the diagram.

Can someone explain the ground wire to me?
I have been interested in building electronic circuits for a long time, but the diagrams would baffle me. i understand a bunch now but i see the ground wire symbol and wonder "what do i do with that?". so if im building a circuit that connects to the battery where do i connect the ground to? the negative end? the actual ground? idk please help!
Building a simple sound triggered switch?
Hello, all –
I am looking to build a simple sound activated switch for my Canon XT DSLR camera. The camera has a jack (3/32" stereo) that is wired in this way –http://farm1.static.flickr.com/146/359549791_83d835b78a.jpg
Hooking up a simple wire to the jack via a plug and closing the circuit will fire the shutter, so the jack has a current running across it. The current its, I think, 3.5V at .5A (i’ll try to confirm that, the lack of a multimeter is yet again haunting me).
I have a decent competency in reading circuit diagrams /soldering. All this has to do is close a circuit once there is a loud sound (Not fire a flash, etc).
My biggest qualm is hooking something with voltage up to a live jack — guides how to modify one of the following circuits would be best, or a separate diagram/description would work too.
http://www.electronic-circuits-diagrams.com/audioimages/9.gif
http://www.hiviz.com/tools/triggers/SNDTRIG.GIF (more me-friendly).
Thanks for your help!
something along these lines: http://www.radioshack.com/product/index.jsp?productId=2062479?
does this circuit work,it’s a simple electronic circuit,please help guys!?
guys i have 2 circuit diagrams1)AM transmitter 2)AM receiver.
if i set the resonant frequency to 232mhz in the transmitter .
and if i set the same resonant frequency in the AM receiver circuit
. and if i use a audio amplifier to amplify the sound from the AM receiver
and then instead of connecting the output wire to the loudspeaker if
i connect a RELAY (which is a switch to a motor). and now if i transmit
a high pitch constant voice tone ,does the transmitter transmit it
,and will the receiver receive it and amplify it and will it switch the motor
. please help guys!
the circuit diagrams are here " www.flikr.com/aj_silverthunder " please check it guys.
Toyota heater fan?
2004 toyota 4runner
fan won't blow, electronic temprature control says it's on, I can hear the flaps move as I change the function. Also the rear glass defrost does not appear to work, even though the light is on, if it's on the same circuit…
there's 2 fuses in box under the hood maked heat, a 15 amp and a 60 amp, both look good, and 2 relays marked heat.
I didn't seem to see relavant fuses in the dashboard fuse block.
Any diagrams where to start?
in the olden days I knew how to check the little resistor coils, but this electronic control has more going on, and it's too cold to just be exploring without a plan.
Thanks,
Jeff
Green Bay Wisconsin
9 below zero today
Electronic Circuit?
Can anybody help me finding an electronic circuit for converting 6 volts DC input to 10 volts DC output. You may give the circuit diagram or refer any website to get it directly from. The current limit at input is 1.2 Amp.
What was this lab equipment meant for?
I bought this on a flea market
http://www.east-west-exchange.com/L&Npic.JPG
Although I "only" use old electronic lab equipment as deco to contrast with the
otherwise hi-tech stuff, I still want to know what it is good for.
This one … I'm not sure. I "reverse-engineered" a circuit diagram
http://www.east-west-exchange.com/L&Ncct.JPG
but I'm still not much wiser….
Yes, it is a bridge of some sort, but for what purpose?
Any ideas?
Note: Leeds & Northrup Co. seem to have gone belly-up in 2000
No variable capacitor inside (see circuit diagram).
I also thought that "L" has something to do with a L-bridge. But "L" and "H" could as well mean High and low….
where can i find appliance wiring diaframs i can down-load?
need wiring diagrams for refrigerator defrost and ice-maker systems as well as microwaves and especially those that contain circuit-boards and electronic modules. thanks.
Required Code in language C for driving a hardware ckt. connected through serial or parllel port?
can someboday give me programme code in Language C and the ckt. diagram of optocouplar driven realy ckt. that i can run by using C programming?
Actually, i want to operate a relay with the help of C programming language , now the signal through the parllel or serial port will not be enough to drive the relay , so i need an electronic circuit that will accept the signal from the parllel or serial port and them amplify it or process it and make the signal so strong , so that it can further operate the relay. this electronic circuit will contain optocouplar IC in oder to have isolation between relay circuit and Computer,
So can somebody provide me some link or can email me this circuit diagram and programming Language C code for operating this circuit?