Member Blog Posts: transistor
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Regenerative FM Receiver Using One Transistor
Posted Feb 08, 2012 By Circuit ProjectsThe VHF super regenerative receiver has been trimmed down to a single transistor without compromising its tremendous sensitivity and…
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Using the Infinity Bug Device
Posted Feb 07, 2012 By Circuit ProjectsAcross the phone line of a distant phone, the Infinity Bug is connected in parallel mode as the construction uses diodes, transistors,…
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Transistor Based Rain Detector Device
Posted Feb 06, 2012 By Circuit ProjectsThe purpose of the project is to provide an alarm at the instant it starts to rain giving enough time to close the windows or bring in…
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LM391-Based Power Amplifier with 35 Watts Output
Posted Feb 06, 2012 By Circuit ProjectsThe circuit was designed to drive the power transistors of a power amplifier that will produce a power output of 35 Watts.
- LM391 – an…
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Two-Transistor Spy Transmitter
Posted Feb 06, 2012 By Circuit ProjectsAny sound can be sent to any FM radio from any room by this simple 2-transistor audio transmitter.
During the usage, the radio and the…
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Using Transistor as a Switch
Posted Feb 03, 2012 By Andrew CarterThe use of transistors for switching things ON and OFF is a key feature of proper hacking. The ability for bipolar transistors to turn things ON and…
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Characteristics of Junction Field Effect Transistors (JFET)
Posted Jan 30, 2012 By Andrew CarterThe junction FET has a channel consisting of N-type semiconductor or P-type semiconductor material and the gate is made of the opposite semiconductor…
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1-Inch Oscilloscope Known as Tiny Scope
Posted Jan 26, 2012 By Circuit ProjectsThe main feature of this oscilloscope is its size that measures 164×83×83mm while using 1-inch diameter CRT and valves but without the use…
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RS232 to Infrared Interface Converter
Posted Jan 26, 2012 By Circuit ProjectsAn infrared transmit and receive interface has been converted to an RS232 serial interface on this project with the use of a microchip PIC…
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Thermostat Heating System
Posted Jan 25, 2012 By Circuit ProjectsThe purpose of the creation of this circuit is to provide a control over a central heating plan or a heating system by maintaining the…
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Building A Simple FM Transmitter with One Transistor
Posted Jan 25, 2012 By Circuit ProjectsThe project is about the size of a standard AA battery which aims to build a single transistor FM transmitter.
Having a power supply of…
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FM Receiver with a Single Transistor
Posted Jan 25, 2012 By Circuit ProjectsThis project contains a very unique one transistor FM receiver accompanied by homemade air-core coils and a homemade fixed capacitor.
The…
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Fundamentals of Bipolar Junction Transistors
Posted Jan 25, 2012 By Andrew CarterThe basic construction of Bipolar Junction Transistor (BJT) comprises of two P-N junctions producing three connecting terminals with each terminal…
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What Do We Know About Transistors
Posted Jan 23, 2012 By Andrew CarterProbably the most important invention of the 2oth Century was the transistor. The first point contact transistor shown below was made at Bell…
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LM7812 High Current Power Supply by TIP2955 Pass Transistors
Posted Jan 10, 2012 By Circuit ProjectsThis LM7812 power supply can deliver up to 30A to the load by the help of the TIP2955 pass transistors. Each transistor can handle up to 5A…
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Transistors to Turbines: Outreach with Substance
Posted Dec 14, 2011 By Kristen GrafIntroduction
Many tech companies sponsor outreach initiatives ranging from robotics programs to science and engineering fairs to one-time field…
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