Page 483 about open circuit detector | |
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This is the cheapest 150 Watt amplifier circuit you can get, I think. Based on two Darlington power transistors TIP 142 and TIP 147, this circuit can deliver a blasting 150 W Rms to a 4 Ohm speaker. Enough for you to get rocked, then try out this. TIP 147.... -
There are occasions when you want to view your video clips taken in your digital camera on your TV. You can do so by interfacing the camera video output to video input of your TV. But this times you cant connect directly as it needs some amplification before.... -
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Making 90 degree phase shift on VHF. This IQ Oscillator is easy way with two logic IC`s. 74AC04 inverter is used as oscillate circuit. C5 and R6 is phase shifter. 74HC14 has a duty to convert into square-wave. It is usualy used 74HCU04 in crystal oscillator.... -
Most switch-mode power supplies rely on a PWM (pulse-width-modulated) output that is controlled via voltage feedback. A 555-timer IC can inexpensively perform PWM. The circuit in Figure 1 shows how to turn a 555 PWM circuit into an switch-mode power supply.... -
The schematic is this fairly simple transistor circuit: Seeing schematics with transistors in them brings back a flood of memories to my college days when I was taking EE classes and I used to know how to do this stuff in my sleep. Unfortunately, that was.... -
Every electronic device that boost electrical signal can be called an amplifier. The various amplifier types only differ in some specific features such as:.... -
Even power device is made to provide energy to some pc. It really is usually devised for converting alternating electric current, (AC), in order to low attention household power, (DC). Without having this bit of equipment, the pc is simply package of.... -
This ISP Programmer can be used either for in-system programming or as a stand-alone spi programmer for Atmel ISP programmable devices. The programming interface is compatible to STK200 ISP programmer hardware so the users of STK200 can also use the software.... -
That circuit allows you to adjust the resistance (with a pot) and adjust the capacitance by opening or closing switches. So, you can have any combination of switches open or closed to get a different effective capacitance. as a side note, if he does crazy.... -
The Subcutaneous Transmitter (A3013) transmits biometric signals from within the body of a live animal. It is the implantable transmitter component of our Subcutaneous Transmitter System. The A3013 detects biometric signals with flexible 150-mm leads,.... -
This sound effects circuit is designed to work as a signal distorter. If used with an electric guitar, it allows the production of special sound effects. T.... -
The circuit was deliberately designed using no ICs and in a rather old-fashioned manner in order to obtain good harmonic distortion behavior and to avoid hard to find components. The amplifier(s) can be conveniently supplied by a 12V wall plug-in adapter..... -
Over Voltage Protector is a simple circuit used to protect appliance from over voltage circuit diagram with parts list of over voltage protector various electronics project... -
This circuit has been very useful in filling a header tank for a reticulated water supply on a farm. Eight troughs are supplied in different paddocks where a lack of water would have serious consequences for the stock. In the past, the tank had been filled.... -
This circuit uses a couple of Op-amps to produce an interesting sound effect. The left hand CA741 is wired as a standard astable and produces the timing pulses, controlled by C1, R2 and VR1. The output is fed via C2 to the second op-amp and is also direct.... -
This infrared alarm barrier can be used to detect persons passing through doorways, corridors and small gates. The transmitter emits a beam of infrared light which is invisible to the human eye. The buzzer at the output of the receiver is activated when the.... -
TDA7000 FM Radio Receiver Circuit Using Tuning Capacitor GENERAL DESCRIPTION The TDA7000 is a monolithic integrated circuit for mono FM.... -
My father-in-law wants to do something unique for his outdoor Christmas decorations and I told him Id help. He wants an LED-illuminated star to hang on his house that will be very-bright. (Of course my definition of very-bright is quite different than his).... -
Bridge circuits have long been popular for conditioning signals from resistive sensors. These circuits are sensitive to small changes in resistance, and they provide a differential output from a single current or voltage source. But the sensors you connect.... -
Automatic Fan Control circuit. This circuit is ON / OFF 12V DC fan or die CPU fan factory IF temperature above normal again temperature.You Can Feed the temperature of VR1. This circuit uses... -
As mentioned before, a simple pulse stretcher like a 74HC123 could have been used, but I didn`t have one so I used a PIC instead I was going to dr.... -
The circuit shown is a simple digital frequency meter, which indicates the frequency in hertz of an astable 555 timer. It could, perhaps, be adapted for other uses. An NPN transistor, TR2, is connected to the 555 astable to be measured, as shown in the.... -
No DIY espionage kit is complete without a long-distance listening device, and no DIY long distance listening device is complete unless it uses a sweet laser in some form or fashion. If you agree with that statement, then you`re in luck, because the....
