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Recent New Posts


 High power mosfet amplifier circuit ideas

Saturday, September 8th, 2012

The power amplifier circuit using MOSFET has been very popular, because the sound is very aggressive, as compared to transistors and ICs. It can be low-frequency and high-frequency response as well, it is highly durable. Usually, if compared with the same sound. It will devices less. Due to the bias the voltage. Easier to control […]


 The most small 5V DC regulators

Friday, September 7th, 2012

When you have a small power supply for digital experimentation. Everyone will tell you that the number of IC 7805 best buy is easy. Is commonly used, because it is easy to find and inexpensive. If you feel tired it, want to try to create a circuit with IC or a transistor is interesting. It […]


 Small IC amplifiers for speakers

Thursday, September 6th, 2012

      Today I have collected a small amplifier IC circuit to you. Most of the old series. and It is a simple circuit OTL series, mini size capacitor chupling to small speakers.       -Although the number of IC may not be stock. It’s very hard to find now. But may have come across in Small electric appliances […]


 Three circuits of preamp tone controls by NE5532

Thursday, September 6th, 2012

Today, I recommend a good quality preamp tone controls, a total of three circuits. We choose to use the NE5532 is main so interesting IC, because the ultra-low noise properties, it is commonly used in many fine audio. But these circuits are old. I have a circuits of friends. They has been small circuit with […]


 Small transistor amplifier Ideals

Thursday, September 6th, 2012

Currently, ICs has been used in many audio amplifiers,especially small circuit. It is convenient to use transistors.But when you need to use transistors, it has several advantages, such as saving you can take old equipment come to made small circuits easier than the IC. Which may be difficult to find. Take a look at these […]





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