120 Years of Electronic Music – The history of electronic music from 1800 to 2015

A very interesting website about the history of electronic music and it's impact on technology. Our technician Joshua is a huge fan of the creation and modification of electronic instruments and can often be found in the deep recesses of the Farnsworth Electronics basement manipulating circuits and bending wires to create new and unusual, sometimes horrifying sounds. If you have an old electronic music device that needs repair or servicing stop on in because he'd love to take a look at it! 
If you yourself are interested in creating electronic music, learning some of the basics, or building your own hardware, we carry a selection of kits geared toward musicians and MIDI. From the Sparkpunk Synthesizer Kit, to simple MIDI I/O to USB interface kits, Arduino synthesizer kits, and even theremin building supplies. 

A sad announcement for the coding community...

The simplicity of Codebender has been utilized numerous times by all of us here at Farnsworth Electronics, wether it be for product testing with the latest boards from Sparkfun.com or Joshua's crazed sojourns into robotics and white hat security breaching. Codebender has been an invaluable resource for those of us who don't have the time to write every string of code needed to get our programs up and running. The platform will surely be missed. 

From the Codebender website:

All good things must come to an end

We have some sad news to share today. With a heavy heart, we've decided to shut down the codebender.cc website. 

In a nutshell, we've been unable to create a sustainable business model around codebender.cc, and we simply can't afford to pick up the tab for running the site out of our own pockets anymore (did you know it costs $25K/month to provide our service?).

We'd like to thank you all for your support. You can find more info as well as our transition plan on our Next Chapter page.

We've also started a conversation on that page and we would like you to be part of it, especially if you have questions for next steps, how to transition your work, etc.

codebender's next chapter

We will still be there, but we're changing our focus from the Maker market to B2B deals with enterprises interested in Cloud IDEs.

-- Vasilis Georgitzikis, CEO & founder, codebender

Another helpful LED referance chart.

LEDs can be confusing. Especially when there are so many different types of LEDs, as well as a multitude of different applications for them. LED stands for Light Emitting Diode. So an LED bulb is more than just a light bulb it is actually effecting the current you are sending through your circuit. LEDs require resistors to drop the amount of current that reaches them so they function at the appropriate brightness, they don't interfere with the workings of the circuit, and so they don't just explode. LEDs come in a variety of sizes and colors, and if you don't have the appropriate resistor in the circuit for the specific LED you are using your circuit may not function properly. The LED's function isn't based solely on the resistor, but the color also factors into the equation. If you are into building noise machines or synthesizer's like our technician Joshua, you will or have already been plagued with redesigning a circuit because it didn't function properly, when all you really needed to do was swap out an LED or the resistor in the LED portion of the circuit. Here is the chart he has saved to his desktop so he can always reference it.To calculate the resistor value needed you use this equation
R=VIN-Vf over If
So on a 9 Volt ( VIN ) circuit using a 3mm red water clear lens LED that has a Maximum Forward Voltage (Vf) rating of 2.6 and an If of 20ma the R ( Resistance value ) equals 320 ohms. So you would need a 320ohm resistor for the circuit to work. 

Don't worry, there's a link below the chart to an online calculator!