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Posts tagged 18v

Circuit 2N2222

Circuit 2N2222 for Headphone amplifier This circuit can source about 500mA continuously, You built a 2 transistor project and it worked great, but now it has stopped working. You decide the transistor may be faulty.

Audio transistor amplifier circuit

Audio transistor amplifier circuit This is Audio transistor amplifier circuit diagram using 2N2222 of a simple 1 transistor audio amplifier that can deliver around 100mW An audio amplifier is an electronic amplifier that amplifies low-power audio signals

How much does an electronics design engineer make in Demark?

VLSI Engineer asked: Specifically I’d like to know if someone has a link to the salary statistics. And more specifically I’d like to know how much you think is the average pay for a VLSI engineer in Denmark with 10 years experience? Is ~50K (DKK) a good monthly salary or not?

RF circuit using 2SA1037K , UN 2112

RF circuit Design information RF circuit using 2SA1037K , UN 2112

Cell Phone / mobile phones Detector circuit using CA3130, NE555, BC548

Cell Phone Detector circuit using CA3130, NE555, BC548 This detector functions let you know that nearby there are phones that activated from a distance of five feet. So that can be used to prevent the use of mobile phones in the exam room, secret room, a place of worship, etc. It is also useful to […]

Circuit and Making Schema Alarm LED – speaker – remote – radio – for Car

I decided to build a compact, yet effective alarm. My demands were:- simple construction, reliable operation, very small power consumption, and, most of all, small size. I started with CMOS logic gates, but was soon forced to abandon the concept after a few unsuccessful attempts. Then I suddenly realized that a simple transistor switch might […]

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