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Mini Projects

Make this Simple Set Reset Circuit using IC 555

Last Updated on June 23, 2026 by Swagatam 42 Comments

In this post I have explained a simple IC 555 set/reset application circuit for activating or deactivating a relay alternately. Audio/Video Representation Circuit Operation This electronic set reset circuit is very simple, easy to implement and very useful. It can provide you many applications options in cases where it may be necessary to toggle (switch […]

Filed Under: Mini Projects Tagged With: 555, Reset, Simple

Fishing YoYo Stop-Motion Switch Circuit with Indicator

Last Updated on June 23, 2026 by Swagatam 1 Comment

a Stop Motion Circuit 1

In this post I have explained a stop-motion switch circuit or a strike indicator for aiding fishing yo yo applications. The idea was requested by Mr. Mike. Technical Specifications (kindly bear the long discussion) Hello Sir, My name is Mike. I am the one requesting help with this stop-motion switch from the “Homemade Circuits” Blog […]

Filed Under: Mini Projects Tagged With: Fishing, Indicator, Motion, Stop, Switch, YoYo

2 Digital Potentiometer Circuits Explained

Last Updated on June 23, 2026 by Swagatam 19 Comments

DS 1869 potentiometer circuit

In this post I have explained a 2 simple, single chip digital potentiometer circuits which can be controlled through a single pushbutton, a dual pushbutton (up/down) or even through external digital (CMOS/TTL) input triggers. 1) About DS1869 Dallastat TM is a rheostat or potentiometer. This unit delivers 64 conceivable consistent tap outputs over the over-all […]

Filed Under: Mini Projects Tagged With: Circuits, Digital, Explained, Potentiometer

10 Step Relay Selector Switch Circuit Diagram

Last Updated on June 23, 2026 by Swagatam 131 Comments

electronicselectorswitchcircuit

In this post I have explained a simple yet useful 10 step selector switch circuit which can be operated using a singe push-to-ON switch. In the following design the circuit is used as a 3 step, single push motor speed controller unit. The circuit was requested by Mr.Edalcor. Technical Specifications hi sir good day to to you, can you please design […]

Filed Under: Mini Projects Tagged With: Relay, Selector, Step, Switch

IC LM338 Application Circuits

Last Updated on June 23, 2026 by Swagatam 90 Comments

LM338basicadjustablepowersupplycircuitdiagram

In this post we will try to analyze a few interesting IC LM338 based power supply circuits and related application circuits which can used by all hobbyists and professional for their day to day electronic circuits and experiments Introduction The IC LM338 by TEXAS INSTRUMENTS, is a versatile IC which can be wired in numerous […]

Filed Under: Mini Projects Tagged With: Application, Circuits, LM338

How to Understand and Use IC 4093 NAND Gates, PinOuts

Last Updated on June 23, 2026 by Swagatam 21 Comments

IC 4093 1

In this article I have explained how to use NAND Gates from the IV 4093 or any other similar IC consisting of NAND gates. About IC 4093 The IC 4093 may not have complicated specifications and attributes yet it proposes many useful utilities. It consists of some fundamental blocks which can be configured according to […]

Filed Under: Mini Projects Tagged With: 4093, Gates, NAND, Pinouts, Understand

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