Vacuum Tube Circuits
Posted on Feb 5, 2014
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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.....
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The unit is powered directly from the 120 volt AC line, with no power transformers. Filaments are...
A composite configuration greatly reduces de errors without compromising the high-speed, wideband...
Otherwise properly mixed sounds often suffer from a predominant solo voice (which might, of...
Well, it took some time and a few failed attempt, but here it is. A neat project that lets you...
Welcome to the weblog where we discuss about electronic circuits schematics, PCB design, diy kits...
The SSM22111 is a high performance audio amplifier that delivers 1 W rms of low distortion audio...
QST`s most recent development ”the Tri-tet oscillator ”has made the single-tube crystal...
The circuit provided in this article shows you a simple way of building a useful liitle inverter...
The following shows over a 1993 VW Passat electrical schematic. Features: Vehicle content,...
The wireless transmitter ambit congenital about transistor T1 (BF494) is a basal low-power...
A motorcycle or boat battery that is not needed over the winter is usually charged before being...
The longer the locks are not used with either the remote or central lock button, the stronger the...
Is the use of LM324 as a band-pass filter, LB1405 for five-band spectrum display drive display...
As shown in (a), KAi, KA2, KA3 intermediate relay, connected to the outlet end of the...
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