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44 results for : “variable-comparison”

Showing 1 to 10 of 44 projects.

Trio JR-500S Ham Radio Receiver: a Review

https://maker.pro/analog/projects/short-review-of-trio-jr-500s-ham-radio-receiver-and-comparision-with-sdrplay-rsp1a-software-defined-fadio

My "new" Trio JR-500S Receiver, and some general comparison with a modern SDR receiver.

Universal VFO 10 KHz-160 MHz with Retro Analog Scale

https://maker.pro/esp8266/projects/universal-vfo-10-khz-160-mhz-with-retro-analog-scale

A variable frequency oscillator (VFO) is a necessary component in any tunable radio transmitter or receiver.

Adjustable 555 Timer Relay Switch | Monostable Multivibrator Circuit 

https://maker.pro/custom/projects/adjustable-555-timer-relay-switch-monostable-multivibrator-circuit

Learn how to make a precisely adjustable timer with a variable delay from 1 - 100 seconds that uses the 555 IC. 

DIY Induction Heater with Ferrite Core Coil

https://maker.pro/analog/projects/diy-induction-heater-with-frrite-core-coil

An electric conductor such as iron container placed in the variable magnetic flux is heated rapidly by induced eddy current.

DIY Electronic Horn for a Bicycle or Car 

https://maker.pro/arduino/projects/diy-electronic-horn-for-a-bicycle-or-car

Learn step by step how you can build a bicycle horn with variable tone and volume.

How to Make an Analog Alarm System With a TI LM386 Power Amp

https://maker.pro/analog/projects/diy-analog-alarm-system-ti-lm386-power-amp

This device will make a loud and annoying sound when somebody moves an object off of the pad.

How to Make a Siren Generator

https://maker.pro/analog/projects/how-to-make-a-siren-generator

Learn how to make a simple electronic siren generator circuit with just a few parts!

DIY Musical Doorbell

https://maker.pro/analog/projects/diy-musical-doorbell

Learn how to make a simple musical bell using the UM66T melody generator IC.

Analog Power Supply Unit

https://maker.pro/analog/projects/analog-power-supply-unit-1

Analog Power Supply Unit designed using discrete electronic components with 10V / 100W output