A tube amplifier 01 HI-FI
Posted on Mar 28, 2007
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 purpose of the Kapagen is to suck the free electrons from the Earth. The Earth is a big...
The NE564 is used as an FM demodulator. The connections for operation at 5 V and 12 V are shown...
This circuit can be used to measure frequencies up to 40 MHz. To obtain the correct measured...
When the digital logic level at the control input is low, the PIN diode is forward-biased by the...
A "power button" that is actually two buttons; one on, one off. This needs to switch on the order...
If I use the internal 1. 1V reference for the ADC, and my Analog input exceeds 1. 1V, lets say 2....
This is a simple preamplifier circuit for electret condenser microphone. using a LM1458 dual op...
This simple 220V power interface is intended as an interface for monitoring electric equipments...
This circuit uses a couple of Op-amps to produce an interesting sound effect. The left hand CA741...
Once packet radio started taking off, the limitations of my first foray into AX25 with the "BSX1"...
TDA8444is the D / A ( digital / analog ) converter IC produced by Philips, and it is used to...
Circuit shown in Figure 3-49. The circuit autotransformer out of operation by the time relay KT...
characters left: