Free Electricity from Earth and Atmosphere

Free electricity from Earth and Atmosphere, firstly announce by Nikola Tesla. He said that Earth and Ionosphere are Big Capacitor, where Earth is One Plate, and Ionosphere is the other plate.

Schematic Diagram of Transistor Receiver , Powered by Energy Abstracted from Atmosphere by L.R Crump

General Application to Provide Power DC to Load from Atmosphere, by LR Crump
Please be careful to experiment this, because it can produce high voltage, keep out from children and, please do not experiment where there is Lightning or storm.

HFE Transistor NPN and PNP Instrument

This project is from elektor electronics. Using IC OP AMP 741 for determine simple transistor HFE , Socket for transistor target use,and also Switch S1 that will choose transistor target.

Power Supply Stabiliser Using IC 78LXX and 79LXX

This power supply circuit using IC 78LXX , with three pin. In, out and ground. this ic using internal limitation current output and protection load thermal for ic transistor secure from damage. In practical ,this ic 78LXX can damage if over voltage on input. The voltage settings for positive and negative output between 2.6 volt until 24 volt. And output current between 100 mA until 5 Ampere.

This Power Supply stabiliser is very worth for your Project and for hobbyist .

List of 78LXX and 78XX :

Imax = 100 mA

Uout   Type               IUtr                  (RMS)                       C1
                                  (min)                 (max)           
5V      78L05              6.4 V                 9.6 V               1000 uF/16 V
6V      78L06              7.3 V                10.3 V              1000 uF/16 V
8V      78L08              9.6 V                12.0V                470 uF/25 V
10V    78L10             11.0 V               13.4 V               330 uF/25 V
12V    78L12             13.1 V               15.2 V               330 uF/25 V
15V    78L15             15.2 V               17.3 V               330 uF/25 V
18V    78L18             17.5 V               19.5 V               330 uF/25 V
24V    78L24             21.9 V               23.7 V               330 uF/25 V


Schematic Diagram :

We can use breadboard to test before you solder in PCB.  We can use universal dot matrix PCB for this project , or we can use PCB as design shown for the components.

Original Sources From Elektor Electronics.

On the next article, I will post PCB design, testing on breadboard, and also Kit with available for you to purchase.

DIY Multifunction Led Name For Store, Wall, Open/Close Door, etc

On this Project , we will discuss about Led Name , for 8 Alphabet or more. Using IC 74LS164 TTL , 8 bit parallel out serial shift register. And Using IC 555 timer. Also transistor 9013 or BC 107.
The circuit as below :

Led Configuration using Transistor BC 107 / 9013 :

Guidance for make one alphabet .

For making 1 alphabet , we using several LED parallel / Series with one transistor . We using power supply 15 Vdc , so maximum LED series is Six, in one line. For example for 18 LED for 1 alphabet, we use this configuration :

Power Supply 5 V using IC 7805.

Ferrite TV Antenna

This antenna system is from Antentop.org . This antenna system , is old design system, usable for Indoor with lots of reflected TV signals , like for apartment and high building with many wall that TV signal that does not directly loss sight to TV receiver.

I have build this antenna, with dipole from hanger , ferrite rod, and variable capacitor with PCB .