Centronics port D/A converters and low-pass filter
Posted on Jun 24, 2012
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.....
.
These circuits are based on TEA2025 is a monolithic integrated audio amplifier in a 16-pin...
This circuit has stable threshold characteristics from its dependence on the-photo diode current...
The use of a switching transistor (like a 2N2222 or 2N3904) allows use of the CD4511B with a...
Using the following circuit, with 12V appplied to the motor, and either high (5V) or low (0V) to...
The transformer is a 600:600 ohms transformer (also named 1:1 ratio 600 ohm transformer) : more...
on the desired temperature. The circuit can be used for many purposes for example switch on the...
This circuit features an intermittent siren output and automatic reset. It can be operated...
Continuing the studies about directly coupled multiple resonance networks operated as Tesla coil...
Take a good capacitor, around 100 or 1000 microfarads, and connect a small resistor, 10 or 5...
This radio was purchased on eBay as not working, and obviously missing all tubes and tube...
In the figure, the TL494 is used as the core to form the PWM driver and protection circuit, and...
78 Series integrated voltage regulator rated output current of 1.5A, For larger output current,...
Circuit as shown by the l2kHz the intermediate frequency oscillator, an alarm circuit. It uses...
characters left: