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Eagle Library for Hammond 1551 Boxes

Hammond Mfg is an American company who makes many different product boxes, mostly famous for their aluminum “Stomp Box” series, widely used for both DIY and commercial guitar effects units.

Browsing through the company’s products, you can find a whole range of small translucent plastic boxes that are really well suited for small electronic PCBs, and can give a good product-ish look to any hobby project.

In this post you’ll find some hints for designing PCBs for Hammond boxes, and an Eagle library with PCB outlines for some of them.

https://fabiobaltieri.files.wordpress.com/2012/11/hammond-intro1.jpg
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LED Lighting on a Budget

LED based lighting is slowly entering the market of home lights side-to-side with traditional incandescent bulbs (which are phasing out in many countries) and more recent gas-discharge lights.

One of the best known advantage of LED lights is their power efficiency, which can be quite high when compared with traditional lights, but if you like to do a DIY light system for your house the most interesting aspect of LED is that you can dispose the single diodes in many ways to get the desired light effect.

LEDs can be obtained in many ways, and if you have some broken LED laptop display to tear down, then you can recycle that LEDs to do some ambient lighting in small environment.

https://fabiobaltieri.files.wordpress.com/2012/02/led_kitchen.jpg
https://fabiobaltieri.files.wordpress.com/2012/02/led_spot_far1.jpg

Here I’ll show a couple of example of how to use LED lights from broken laptop display, explaining how to drive the LED with series resistor or DC/DC converters.

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