xdrainpower

Very loud SIREN based on CD4046 Filter for Subwoofer based on 2 NE5532 Knight Rider ---LIGHTS based on 1 NE555 and 2 LM3914

4 pin 3.5mm (2.5mm) plug connector at the Nokia headset cable Nokia AD-57, wh-500 headset pinout. Should be compatible with Nokia 1200, 1202, 1208, 1209, 1650, 1661, 1662, 1680, 2220 slide, 2323, 2330, 2600, 2630, 2680 slide, 2700, 2720 fold, 2730, 2760, 3109, 3110, 3110 Evolve, 3120, 3500, 3600 slide, 3710 fold, 3720, 5000, 5030, 5130 XpressMusic, 5200, 5220 XpressMusic, 5230, 5300 XpressMusic, 5310 XpressMusic, 5320 XpressMusic, 5530 XpressMusic, 5610 XpressMusic, 5630 XpressMusic, 5700 XpressMusic, 5730 XpressMusic, 5800 XpressMusic, 6110 Navigator, 6120, 6121, 6210 Navigator, 6216, 6220, 6267, 6290, 6300, 6300i, 6301, 6303, 6500 slide, 6555, 6710 Navigator, 6720, 6730, 7020, 7070 prism, 7100 Supernova, 7210 Supernova, 7310 Supernova, 7390, 7500 Prism, 7510 Supernova, 7610 Supernova, C6-00, C6-01, C7, E51, E52, E55, E63, E66, E7, E71, E72, E75, E90 Communicator, N76, N78, N79, N8, N800 InternetTablet, N81, N810 InternetTablet, N810 WiMAXEdition, N81 8GB, N82, N85, N8

ISD25120 circuit de inregistrare redare audio Circuite Audio (RO)                   Utilizand circuitul integrat ISD25120, circuit integrat fabricat de special pentru a memora si reda un semnal audio de cu o durata de pana la 120 de secunde. Circuitele din seria ISD25xx sunt special concepute pentru a oferi calitate ridicata de înregistrare / redare in mai multe variante te timp 45, 60, 75, 90 şi 120 de secunde. Înregistrările sunt stocate intr-o memorie nonvolatila. Pentru a înregistra un mesaj, va trebui pozitionat comutatorul Record/Play in pozitia Record siapasat si eliberat butonul Start/Pauza. In momentul in care inregistrarea este activa Led-ul 1 va ilumina . In momentl in care se doreste oprirea inregistrarii, este necesara apasarea utonului Start / Pauza . Dacă doriţi să înregistraţi un alt mesaj trebuie doar să apăsaţi pe butonul Start / Pauză din nou. In momentul in carese vor asculta mesajele, va fi redat doar un singur mesaj , pana in momentul

       Magnetic Generator – Build Your Own dont turn your brain off Produce Your Own Electricity It’s hard not to have heard about the magnetic generator over the last couple of years. There has been a lot of excitement surrounding this incredible invention. Some people have called it a scam while others have stated that it has totally eradicated their electricity bill. The truth is that there is a lot of misconceptions about the magnetic generator but at the end of the day, it can power your whole house. The Biggest Misconception About The Magnetic Generator Lots of people are quick to call the  magnetic generator  a scam because as you may or may not know it is impossible to generate electricity using just the power of magnetism alone. However these people who can’t wait to say that it’s impossible haven’t even seen any of the magnetic power generator plans that are available. The one thing that all these generators have in common is that they require a power

LM 317 Here is a simple but effective battery charger circuit using IC LM 317.The circuit can be used to charge 12Vlead acid batteries.The circuit is very simple and can be easily assembled on a general purpose PCB. The heart of the circuit is IC LM 317 ,which is an adjustable voltage regulator IC.The pin 1 of the IC is the control pin which is used to control the charging voltage.The pin 2 is the output pin at which the charging voltage appears.The pin 3 is the input pin to which the regulated DC supply is given. The charging voltage and current is controlled by the Transistor Q1,resistor R1 and POT R5.when the battery is first connected to the charging terminals ,the current through R1 increases.This in turn increases the current and voltage from LM 317.When the battery is fully charged the charger reduces the charging current and the battery will be charged in the trickle charging mode.  This image downer not another image above