Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Thank you very much for the help, but I have one question, can you please tell me where I am suppose to put the SCREEN in the circuit? Please...
Thank you
I tried the circuit by replacing the transistor with the dual-transistor setup, and the result is: when i connect it to power, the alarm starts to sound immediately, and when i put the laser light on the photocell there is no change, and i tried it this way, fiirst i applied the laser onto the...
than you for your help and one quick question does the double transistor work if i use it in this schematics?(look at the pic)
and Reloadron i am using this photocell (https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_120299_-1)
thank you for the help
thank you for your help, but i am new to this so i dont exactly know how to connect a relay in a circuit and which pins to connect and can you also suggest which relay to use, and the other thing is that i tried bunch of simple circuits like the one you gave me, and they work fine, but the...
I was working on the schematics you gave me and i connected everything according to the schematics, but i am facing one problem. when i supply power to the circuit(with no laser on the photocell) nothing is happening when it was suppose to sound, and with out changing anything to the connections...
i am using "Audio Buzzer Piezo 12VDC 250mA Wire Lead 6VDC 1500Hz to 3500Hz "
you can see the details here
https://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_207993_-1
Help with Problem Circuit
I was working on this project and i connected everything according to the schematics, but i am facing one problem. when i supply power to the circuit(with no laser on the photocell) nothing is happening when it was suppose to sound, and with out changing anything to...
I went to radio shack to buy the scr and the told me they don't have it in store and I can order it online and when i went online there are alot of options, can someone tell me which to buy and some people told me I could use two transistors to make the current flow continuesly if so where do I...
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