10 minute time delay by fet 2n3819
Posted on Feb 5, 2014
Related Circuits
New Circuits
-
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
.
The video switcher described here can display the output of two, three, or four cameras on a...
The 20-MHz clock phase-locks to Apple"s Mac II 10-MHz NuBus clock. It uses a simple, inexpensive...
This CW transmitter has an output of up to 3 W. By using 24 V on Q2, up to 10 W output can be...
Then iron the printed layout at minimum heat until the ink sticks to the PCB. It may take more...
This one is using a 16F876 PIC, MCP1047A temperature sensor ( X2 ), MCP1541 voltage reference and...
Using BA1404 can be designed a very simple and useful fm stereo modulator electronic project....
This is a design circuit for alarm circuit. This circuit is controlled by keypad. For the core of...
The ZN414 is a low cost, single-chip AM radio integrated circuit. Launched in 1972, the part was...
The objective is to make a small light that is activated by motion and will remain on for 20...
A oscilloscope would be useful in analyzing the waveforms produced by this circuit, but it is not...
This schematic is a tone transmitter. For sufficiently small values of the resistor, it outputs a...
When button S12 (#) is pressed, a positive voltage fed through R1 appears at the base of...
This is the current schematic for the Boost converter. The negative power is connected to the...
Adder circuit commonly used inverting input, namely the inverting adder circuit. It was to the...
And vehicles from the same period, the generator without excitation, no voltage generator bus,...
Circuit shown in Figure 3-73. The line is to use the power of instantaneous power failure, the...
characters left: