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USB connector there are only 2 kinds, namely the connector type A and type B connector, as shown below. Type A connector used to connect the USB cable into the USB terminal on the back of the computer the last few years of production. Type B connector used to connect the USB cable into the USB terminal on the equipment, for a simple USB devices, such as mouse, usually do not use the connector B, to save cost in the cable directly connected to the inside of the mouse. Specified in the standard reference pesyaratan very strict to USB cable, not just the cable can be used, all the more for USB full-speed transfer of data to 1.2 Mega bps. So that the USB cable always sold as a ready-made, one end attached to the connector type A and the other end attached to the connector type B, no one sells it off the USB connector. On the computer, usually there are two terminals for connector type A, so it can easily be paired with 2 pieces of USB devices. Manufacturing company that makes the ...

Comparison between MC and MI Instruments S.No M.C Instruments M.I Instruments 1 More accurate Less accurate 2 Costly cheap 3 Uniform scale Non-uniform scale (scale cramped at beginning and finishing) 4 Very sensitive Robust in construction 5 Low power consumption Slightly high power consumption 6 Eddy current damping is used Air friction damping is used 7 Can be used only for D.C Can be used on A.C as well as on D.C 8 Controlling torque is provided by spring Controlling torque is provided by gravity or spring 9 θ α I θ α I 2 10 Errors are set due to aging of control springs, permanent magnet (i.e. No Hysteresis loss) Errors are set due to hysteresis and stray fields (i.e. hysteresis loss takes place).

This is an electronic fuse that protects the load against short circuit. Project Description Relays must be chosen with a voltage value equals to the input voltage. Don’t omit using the 100uF capacitor with appropriate voltage value with respect to the input voltage. If you can’t provide, you can use C106 instead of BRX46. You can adjust the current with using 10K potentiometer. If you will use the fuse with very high currents, lower the 0R6 5W resistor value (ex. 0R47, 0R33, 0R22 or 0R1). Watt value of the resistor should be increased also.

Digital Thermometer 0-100.0°Celsius Digital Thermometer 0-100.0 ° C is a digital thermometer that operates in mode temperature measurement in Celsius (° C). Digital Thermometer 0-100.0 ° C in this article using the form data processing microcontroller AT89C4051. Temperature sensors used in Digital Thermometer 0-100.0 ° C. This temperature sensor LM35D. Digital Thermometer 0-100.0 ° C. It uses the temperature measurement data viewer in the form of 1 line LCD viewer. Digital Thermometer 0-100.0 ° C. It can display the temperature measurement data with a resolution of 0.1 ° C. Digital Thermometer 0-100.0 ° C  Digital Thermometer 0-100.0 ° C. These temperature sensors make use of LM35D as temperature sensing. In Digital Thermometer 0-100.0 ° C. This temperature sensor measurement data this LM35D (Level Voltage) is then converted into 4-bit binary data using the ADC CA3162. Then the 4-bit data from ADC CA3162 which is a measurement of data if the temperature is in the AT89C4951 microcon...

Today we'll answer the frequently asked question. "why LED strip light won't light up". If you find your flexible LED strip light won't light up or power up, you may check the following troubleshooting information for help. 1. The lamp beads of led strip light must be broken or damaged during transportation if the light is not covered with full protection. 2. There must be a faulty at the light's soldering points. The soldering may come off if there is any shock during transportation. 3. Soldering with poor quality may cause embrittlement or shedding when the strip light is bent for use. 4. Cheat on tin soldering materials can also cause the same problem as the 2 point we just mentioned. 5. LED lights with flexible installation bending angle is too large, resulting in LED lights with flexible joints and lead to bright copper separation flexible led strip lights 6. A excessive bending may result in the disconnection between the joints and copper foil. 7. Th...

Peamp circuit extra-deep bass change capacitor The input impedance is the value of potentiometer Rl. If your instrument has extra-deep bass, change capacitor Cl to 0.5 mF. What appears to be an extra part in the feedback loop is a brightening tone control. The basic feedback from the op amp's output (pin 6) to the inverting input (pin 2) consists of resistor R7, and the series connection of resistor R4 and capacitor C3, which produce a voltage gain of almost 5 (almost 14 dB). That should be more extra oomph than usually needed. Peamp circuit extra-deep bass change capacitor

You can use this powerfull amplifier in any small audio project. It is very small (6.5 x 4.5 cm).It outputs 10W and uses a 9V battery. Component   PCB Componets List R1 : 6 Ohm R2 : 220 Ohm R3 : nothing R4 : 10 KOhm pontesiometer C1 : 2200 uF / 25V C2 : 470 uF / 16V C3 : 470 nF / 63V C4 : 100 nF C5 : nothing C6 : nothing IC1 : TDA 2003

If you insist on using a valve radio and listening to medium-wave stations, you have a problem: the existing broadcasters have only a limited number of records. Here there’s only one remedy, which is to build your own medium-wave transmitter. After that, you can play your own CDs via the radio. The transmitter frequency is stabilised using a 976-kHz ceramic resonator taken from a TV remote control unit. Fine tuning is provided by the trimmer capacitor. If there’s another station in the background, which will probably be weak, you can tune it to a heterodyne null, such as 981 kHz. As an operator of a medium-wave transmitter, that’s your obligation with respect to the frequency allocations. And that’s despite the fact that the range of the transmitter is quite modest. The small ferrite coil in the transmitter couples directly into the ferrite rod antenna in the radio. Medium-Wave Modulator Circuit Diagram The modulator is designed as an emitter follower that modulates the supply voltage ...

This is a simple project of Electronic Voltmeter Circuit Diagram.This circuit provides a simple means to determine the voltage of a low-impedance voltage source. It works as follows. P1, which is a 1-W potentiometer, forms a voltage divider in combination with R1. The voltage at their junction is buffered by T1, and then passed to reference diode D1 via R3. D1 limits the voltage following the resistor to 2.5 V. An indicator stage consisting of T2, R4 and LED D2 is connected in parallel with D1. As long as the voltage is not limited by D1, the LED will not be fully illuminated. This is the basic operating principle of this measurement circuit.  Electronic Voltmeter Circuit Diagram   

The Design  The material storage level indicator circuit as requested above can be built using the following simple configuration:  The Design The functioning of the circuit can be understood as given below: When power is first switched ON, the supply powers the 555 circuit and simultaneously also switches ON the motor, and the laser through the relay N/C contacts causing a low resistance on the receiving LDR device. The low resistance from the LDR inhibits the BC557 from conducting and the situation locks in this condition, until the space between the Laser/LDR begins filling with the relevant material. As the material begins filling, at some point of time it reaches the threshold level between the  LDR/laser communication beam , and interrupts the beam. As soon as this happens, the LDR resistance becomes high allowing the BC557 to conduct and trigger the IC 555 stage which is actually wired as a standard monostable multivibrator circuit . The IC 555 triggers into action...

Description   This is a universal version of the Four-Digit Alarm Keypad . I've modified the design of the output section - to free up the relay contacts. This allows the circuit to operate as a general-purpose switch. I used a SPCO/SPDT relay - but you can use a multi-pole relay if it suits your application. Do not use the "on-board" relay to switch mains voltage. The board's layout does not offer sufficient isolation between the relay contacts and the low-voltage components. If you want to switch mains voltage - mount a suitably rated relay somewhere safe - Away From The Board .   Circuit Diagram   Notes: The relay is energized by pressing a single key. Choose the key you want to use - and connect it to terminal "E". Choose the four keys you want to use to de-energize the relay - and connect them to "A B C & D". Wire the common to R1 and all the remaining keys to "F". The Circuit is easy to use. When you press "E" - curre...

10W AUDIO AMPLIFIER WITH BASS-BOOST ELECTRONIC DIAGRAM Adjust the volume control on the minimum and R3 position with a minimum value of resistance as well. try to switch the circuit set in R3 to read the flow of about 20 to 25mA. Wait for 15 minutes, connect the ground of A1, P1, C2, C3dan C4. Connect the output also C9 ground List Component P1 : 22K Log Potemsiometer (Dual gang for stereo) C3, 4 : 470uF/25V P2 : 100K Log Potemsiometer (Dual gang for stereo) C6 : 47pF 63V ceramic ar polyester capasitor R2, 4, 8 : 820R 1/4W C7 : 10nF 63V polyester capasitor R1 : 4K7 1/4W C9 : 100nF 63V polyester capasitor R3 : 500R 1/2W D1 : 1N4148 75V 150mA Diode R5 : 82K 1/4W IC 1 : NE5532 Low noise Dual Op-amp R6, 7 : 47K 1/4W Q1 : BC547B 45V 100mA NPN Transitor R9 : 10R 1/2W Q2 : BC557B 45V 100mA PNP Transitor R10 : 0,22 4W(wirewound) Q3 : TIP42A 60V 6A PNP Transistor C1, 8 : 470nF 63V polyester capasitor Q4 : TIP41A 60V 6A NPN Transistor C2, 5 : 100uF/25V J1 : RCA audio input socket

The neck on this vintage Hofner Colorama II is going to get tackled before we deal with the guitar's other issues. The neck is in quite a state, with at least the following problems: 1. The frets need replacing (total refret). 2. The fingerboard is very uneven and needs re-radiusing (sanding down to the correct curvature again). 3. There is a long crack/gap running along the fingerboard that will need to be filled in (luckily this is not a structural problem). 4. The nut needs to be removed and replaced. 5. The old lacquer needs to be removed and the neck needs to be re-lacquered. 6. A new waterslide-decal logo needs to be made and applied. 7. The relief on the neck needs to be dealt with (it is back-bowed, even when the truss rod is completely loosened). Today we will just deal with the stripping down stage. First thing to do is remove the neck from the guitar as follows: The machine heads (tuners) and string retainer are also removed, leaving us with this: Before we can do any mo...

The c200 is the result of numerous diyers' request for a basic discrete power amplifier. As such, this amplifier is specially designed to meet the following: fairly high power output. easy to construct. use common components. no oscillations. have current limit protection. above average hifi performance. bridgeable for HT subs. rugged enough for party use. Power Output Output of the c200 into 8 ohms before clip is 125 Watts. When loaded to 4 ohms, the output is increased to 200 Watts. With 2 channels operating in bridged mode, power output is a respectable 400 watts into 8 ohms. Output Transistors For easy procurement, very common transistors have been chosen for the c200. The power transistors comprise of 4 pieces of MJ15003 and MJ15004. Though "slow" (fT=2MHz) by today's standards, these transistors are easily available, reasonably priced, has sufficient power rating and the necessary SOA for audio. For those who prefer to use 2N3055 and MJ2955, the c70 model, with ...

FAST RECOVERY DIODES Fast recovery diodes are designed to provide ultra high switching speed. They are mainly classified into two :- Diffused PN Junction Diodes Metal Semiconductor Diodes The total recovery time for a P-N Junction diode can be substantially reduced by introducing efficient recombination centers, such as Au and Si, to the bulk material. Although the recovery time is directly proportional to the lifetime, it is not possible to reduce recovery time to Zero by introducing an extremely large number of recombination centers, because the reverse generation current of a P-N junction is proportional to recombination centers. For direct band gap Semiconductors, such as GaAs, the minority carrier lifetimes are much smaller than that of silicon. This results in ultrahigh speed GaAs P-N junction diodes with recovery times of the order of 0.1ns or less.

This circuit uses a single chip, IC BA3812L to make 5 band graphic equalizer in audio hi-fi system. BA3812L IC is a 5-point graphic equalizer that has all functions integrated on a single IC. This IC is composed of five tone control circuit and input and output buffer amplifier. BA3812L have low distortion, low noise, and wide dynamic range, and is ideal for a variety aperanti Hi-Fi stereo. He also has a wide operating voltage range (3.5V to 16V), meaning he could be adapted for use on most stereo equipment. The five center frequencies are independently set using external capacitors, and therefore act as an output stage buffer amplifier and tone control section is a series of its own, it is possible to do fine control over the frequency bandwidth. By using two BA3812Ls, you can create a 10-point graphic equalizer. Great header and pieces can be set by external components. The recommended power supply of 8V, but this circuit can work well for supply voltage 9V. Limit the maximum voltage...