OR gate with two 555
This shows how to OR gate two 555, when one 555 cycles at a low frequency a valve turns on an off, the second 555 […]
Hobby-Circuits
Electrical Symbols that you should Know
Found these in openclipart and wikipedia, A collection of basic electrical symbols you ought to know. You could use these symbols to add in your […]
Metal Detector Circuits Problem
With the best wishes for you. I found your address and browsed your website. I have a question and hope to take your help and […]
What is Saturation in Transistors
Date 8/30/06 Simon and delabs Simon: hello, delabs: hello Simon: we have many meanings for saturation, delabs: means turning on, also means no longer linear, […]
Flashing Mains Neon Lamp
Here is a Neon Flasher circuit (untested) for a user request at Circuits FAQ. This can be built into a switchboard or a gadget for […]
Working with SMD and SMT PCB
One thing tho, i would like to request you to send me some procedures on how to work with surface mount devices (SMD’s). I cant […]
FET Current Source and MOSFET
This is a constant current source using a FET. This is the most simple replacement to series resistor to limit current. The N-Channel FET BF256C […]
Perpetual Candle – White LED Lamp on Ni-Cd
This is a easy to build LED lamp circuit for Learning and building skills. This is the first draft schematic V 1.0. It will need […]