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Newly Updated Circuit Projects:

2N3906 Datasheet [40V, 200 mA, PNP Transistor]

Last Updated on January 19, 2025 by Swagatam Leave a Comment

2N3906 pinout details

In this post I have explained the complete datasheet of the transistor 2N3906. It is the complementary to the transistor 2N3904. Here is the complete datasheet for the 2N3906 PNP transistor. Pinout Configuration The transistor 2N3906 has 3 pinouts named as emitter, base and collector. These pinouts are arranged as shown in the following figure: […]

Filed Under: Datasheets and Components Tagged With: 200, 2N3906, 40V, Datasheet, PNP, Transistor

2N3904 Datasheet [40V, 200 mA NPN Transistor]

Last Updated on January 19, 2025 by Swagatam 2 Comments

2n3904transistorspecsdatasheetpinout 1

In this post I have explained the main datasheet and pinout details of the NPN transistor 2N3904 Introduction The transistor 2N3904 comes under the category of NPN small signal, low power, general purpose transistor, mainly applicable for switching and for signal amplification. It’s dynamic range may include a current handling capability of more than 100mA […]

Filed Under: Datasheets and Components Tagged With: 200, 2N3904, 40V, Datasheet, NPN, Transistor

2N3055 Datasheet, Pinout, Application Circuits

Last Updated on January 19, 2025 by Swagatam 20 Comments

2N3055 power derating

The 2N3055 is a power bipolar transistor designed to handle high power loads in the range of 100 V, and 15 amps. In this post I will comprehensively discuss the pinout function, electrical specification, and application designs for the power transistor 2N3055. If you are an electronic hobbyist, you might have certainly used this very […]

Filed Under: Datasheets and Components Tagged With: 2N3055, Application, Circuits, Datasheet, Pinout

27 MHz Transmitter Circuit – 10 Km Range

Last Updated on January 19, 2025 by Swagatam 19 Comments

27 MHz prototype

The 10 km range, 27 MHz transmitter circuit explained here uses citizen’s band which consists of 2 main types of users: radio control (R/C) modellists and users of low-power FM transceivers for local communication. However, here it is designed and intended for testing antennas and aligning receivers. It is actually an AM/FM quartz controlled for […]

Filed Under: Wireless Circuits Tagged With: Range, Transmitter

250 Watt Pure Sine Wave Inverter Circuit

Last Updated on January 19, 2025 by Swagatam 32 Comments

250 watt sine wave inverter compressed

The cost and quantity of parts necessary to develop the proposed 250 watt sine wave power inverter circuit is actually much less compared to a noisy square wave switching-type inverter circuit. Only an extra three or four tiny transistors, a some resistors and capacitors, a couple of pots and a small driver transformer are all […]

Filed Under: Inverter Circuits Tagged With: 250, Inverter, Pure, Sine, Watt, Wave

24V to 12V DC Converter Circuit [using Switching Regulator]

Last Updated on January 19, 2025 by Swagatam 14 Comments

24V to 12V DC converter circuit

The DC to DC converter circuit described below can be used to convert a 24 V DC source into a 12 V DC output with high efficiency. Meaning, the circuit will allow to acquire a 12 V DC from a 24 V DC source with negligible power loss. Being a switching regulator, this circuit is […]

Filed Under: Power Supply Circuits Tagged With: 12V, 24v, Converter, DC, Regulator, Switching

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