555 Flip Flop Circuit Schematic
A quick way to make a flip-flop out of a 555 Timer IC. If your component cabinet is limited, you can avoid having to use two digital logic gates.
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LM317 Adjustable Voltage Regulator Schematic
One of the most versatile components around, the LM317 Voltage Regulator allows you to power your circuit with voltages ranging from 2.5V to 15V. Try all all of those higher-voltage …
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DIY Center Negative Power Supply
In the DIY audio electronics world, getting electricity to power your circuits is merely a matter of connecting the right wires and voltages to the right spots! In this tutorial, …
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Atari Punk Junk Console
This circuit is a fork of a great project that I found online while looking for information on Linear Feedback Shift Registers (LFSR). Here’s a video that inspired the fork: …
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Rhythm Bandit by Lueken Innovations Teardown Fail!
I was hoping to do a quick article on DIY reverse engineering, but was thwarted by a little bit of intellectual property protection! My subject of study was the Rhythm …
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Easy Cheap 24 AWG Stranded Wire from a Cat 5 Ethernet Cable!
In this tutorial, we’re going show you how to get a lot of wire from an ordinary Cat5 Ethernet cable!
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Hallmark Digital Sound Recorder DIY Breakdown & Repurpose Guide
My dad recently sent me a Hallmark birthday card that allows for a special message to be played when opened. What’s interesting about it is that a personalized message can …
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PT2399 Digital Delay IC
The PT2399 is one of the most rewarding chips a DIYer can experiment with. A stock circuit from the datasheet can nearly complete a guitar pedal project, and there are …
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AC Adapter Breakdown: What’s Going On Inside Those Wall Warts?
I have a couple of side businesses that require power supplies. As a result, I have boxes and boxes of power supplies filling up weekly. Have you ever wondered what’s …
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DIY S-Trigger Cable Tutorial: How To Make Your Own S-Trig Cables and Other Assorted Circuits
In this tutorial, we’ll be making our own S-Trig cables, which are useful for interfacing with older synthesizers made by Moog, Yamaha, and other manufacturers. These cables are not only …
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