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Posts Tagged ‘transistor’

USB curve tracer for NPN transistors

Thursday, April 21st, 2016

Dilshan Jayakody documented his USB port base NPN transistor curve tracer project: Curve tracer is an electronic test instrument to analyze the characteristics of transistors and other discrete semiconductors. In this post we construct USB base curve tracer to analyze properties of NPN transistors. This curve tracer is build around Microchip's...

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Posted in open source, USB | 10 Comments »

Transistor info site

Tuesday, December 10th, 2013

Ivan writes to inform us of his new site, www.info-transistor.info. "It allows you to find the technical specs of transistors (bjt, mosfet and igbt) and even put this information here in the forum with the BBCODE export option!" Via the contact form.

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Posted in components, documentation, site | 1 Comment »

Transistor tester project

Tuesday, September 17th, 2013

Hemal Chevli blogged about his transistor tester project: It has mega-8 as the brain, lcd to show specs of the transistor like which pin is which, what type of transistor it is eg NPN,PNP, N-MOSFET,P-MOSFET, etc., many components can be tested like different types of transistor, diodes, resistors etc, the good...

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Posted in tools | 1 Comment »

Excel-based transistor amplifier calculator

Friday, March 29th, 2013

Paulo shared an Excel-based transistor amplifier calculator.  'Besides the basic gain and biasing calculations many others implement, this calculator can also estimate noise which is a bit more involved': ..Because this is a circuit I use frequently, I decided to make an Excel spreadsheet to ease the calculations. The spreadsheet...

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Posted in techniques | 7 Comments »

Testing the photovoltaic effect with a transistor

Tuesday, February 14th, 2012

When you expose the silicon die of a transistor to a light source a charge is produced. CircuitsDIY opened up a 2n3055 transistor and did some experimenting. With the help of a magnifying glass he was able to built up a charge of 0.65V and produce 42.2mA of current. Most...

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Posted in DIY | 4 Comments »

The single NPN transistor audio preamp

Wednesday, August 10th, 2011

Hack a Week's new project this week is a single NPN transistor audio preamp: Here’s a great little project that goes well with the LM386 audio amp. It’s a good first time transistor project because it’s simple and demonstrates the common emitter class A amplifier circuit with only six components...

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Posted in hacks | 5 Comments »

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