My Light Diagram

Technology is constantly evolving and introducing new products to an already full line of home theater products. While not the newest kids on the block, wireless speaker technology is also advancing at a rate that prices are no longer out of reach of the average consumer and the value of being able to move your speakers around without going to the work of rewiring is appealing to consumers on an increasingly large scale.  Wireless Speakers I always try to keep in mind when buying new electronics and electronic components that this year’s technology will sell at half the price this time next year. For this reason I have a hard time investing in the latest and greatest when it comes to technology and tend to remain exactly one generation behind the curve when buying new products. I like to save money whenever possible and in most cases my like of saving money outweighs my like of having new gadgets and gizmos at the high price they often command. I also have a nasty habit of keeping t

I used specialized triple half bridge IC L6234 (~ 8$). You can make the same spending less money (but more time) with MOSFET transistors or other IC. L6234 datasheet is surprisingly useless. Go straight to Application Note AN1088 instead. I added current limiting resistors (1kΩ) to all INputs and ENable pins, a bunch of capacitors recommended in application note and current sensing shunt resistor 0.6Ω (big blue one). [ ]

Special design for shop-windows animation Useful for many types of touch controls Circuit diagram: Parts: R1,R2_____1M 1/4W Resistors R3,R4____47K 1/4W Resistors C1_______10µF 25V Electrolytic Capacitor C2______470pF 630V Ceramic or Polyester Capacitor D1-D3____1N4002 100V 1A Diodes Q1-Q3_____BC337 45V 800mA NPN Transistors RL1_______Relay with SPDT 2A @ 220V switch Coil Voltage 12V. Coil resistance 200-300 Ohm J1________Two ways output socket Sensor____Aluminium or copper thin sheet with the dimensions of a post-card, glued at the rear of the same (about 15x10.5 cm.) Thin screened cable Circuit Description:  The purpose of this circuit is to animate shop-windows by means of a capacitive sensor placed behind a post-card-like banner. The card is placed against the glass inside the shop-window, and the visitor can activate the relay placing his hand on the card, from the outside. Especially suited for toy-shops, the circuit can activate model trains, small electric racing cars, lights

Simple DCF77 Preamplifier Circuit Diagram . A popular project among microcontroller aficionados is to build a radio-controlled clock. Tiny receiver boards are available, with a pre-adjusted ferrite antenna, that receive and demodulate the DCF77 time signal broadcast from Mainf lingen in Germany. DCF77 has a range of about 1,000 miles. All the microcontroller need do is decode the signal and output the results on a display. The reception quality achieved by these ready-made boards tends to be proportional to their price. In areas of marginal reception a higher quality receiver is needed, and a small selective preamplifier stage will usually improve the situation further. The original ferrite antenna is desoldered from the receiver module and connected to the input of the preamplifier. This input consists of a source follower (T1) which has very little damping effect on the resonant circuit. A bipolar transistor (T2) provides a gain of around 5 dB. The output signal is coupled to the ant

The DIY soldering robot which we have been building in our spare time over the past few months is now working and we have been able to solder some test Raspberry Pi expansion board headers with the machine. [ ]

Circuit Diagram Description Please agenda that the blueprint for this amp has been upgraded, and it is now recommended for connected aerial ability into 4 Ohms, but You will charge to go to extremes with the heatsink ( fan cooling is awful recommended). It was originally advised for “light” alternate duty, acceptable for an equalised subwoofer arrangement (for archetype application the ELF assumption – see the Project Page for the advice on this circuit). Where connected aerial ability is required, addition 4 achievement transistors are recommended, active in the aforementioned way as Q9, Q10, Q11 and Q12, and application 0.33 ohm emitter resistors. Continuous ability into 8 ohms is about over 150W (250W for ±70V supplies), and it can be acclimated after added transistors at abounding ability into an 8 ohm amount all day, every day. The added transistors are alone bare if you appetite to do the aforementioned affair into 4 ohms at best accumulation voltage! Do not alike anticipate