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1-Watt FM Transmitter
Written by enrico->garante   
Saturday, 06 November 2010 08:50

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This is a simple, portable transmitter operating in the 88-108 MHz FM band.

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1 Watt FM Transmitter
You may use it to run your own private neighbourhood radio, just replacing the microphone capsule with a male audio jack connected to your pc or MP3 player. You may also use this as a spy transmitter, but be reasonable in that case! :D
It's rated for 1 Watt, so you can listen to it even from a few kilometers, with a good antenna and not too much obstacles in the way.

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FM-TX Schematic

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Last Updated on Sunday, 07 November 2010 13:21
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Multicolored LED with CD4093
Written by TehnikService   
Saturday, 06 November 2010 00:00

Multicolored LED with CD4093This project is a floor lamp that can take the color and brightness as desired. Adjusting the brightness of each group is provided by a generator whose frequency is fixed but whose duty cycle (temporal relationship between high and low) is variable, much more efficient than setting current variation in LEDs. It consists of a fixed frequency oscillator and variable duty cycle for each of three colors. Each oscillator operates independently, which helps determine the degree of brightness of each red, green and blue. For this project I made a  PCB using toner transfer method.

 

More photos on Facebook Fan Page.

Last Updated on Saturday, 06 November 2010 20:26
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Head Display of A Wall-Mounted Werewolf
Written by admin   
Thursday, 04 November 2010 19:00

This Halloween decor illustrates the making of a realistic werewolf head with the use of glass eyes, fake fur, sculpey, a taxidermy form, and hot glue. There are a few places online where Magic Sculpt can be bought. It is tougher than sculpy and easily dries. It can be used as a clay although it mixes like an epoxy. The finished product of the werewolf head is shown below.

Head Display of A Wall-Mounted Werewolf

Last Updated on Friday, 05 November 2010 03:26
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Acrylic Glass Folding Heater
Written by admin   
Wednesday, 03 November 2010 05:26

This project is an acrylic glass folding heater. Giorgos Lazaridis wanted to fold some “acrylic glass” and decided that doing with a heater gun you don’t get the desired results so he made a better heater from an old printer heating element. Check how he build a housing for the lamp and how he build the controlling board. For dimmer he used the PIC DCV Controlled AC Light Dimmer that he has already made. He only made one change to original circuit, he replaced a transistor. Check construction details on the link below.

Acrylic Glass Folding Heater - [Link]

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Last Updated on Thursday, 04 November 2010 14:24
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Ethernet Cable Audio Extension
Written by uchobby   
Saturday, 23 January 2010 17:32

Authors: uchobby


CAT5 Ethernet cables to connect audio from my PC to my room stereo.  My shop has a nice stereo on the far wall away from my PCs and work bench. Rather then purchase a long audio extension cable I scrounged up some CAT5 Ethernet cable and audio connectors, a few quick splices and a 30 [...]

via: http://www.uchobby.com/index.php/2010/01/23/ethernet-cable-audio-extension/

Last Updated on Thursday, 14 July 2011 00:11
 
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