Nuts and Volts - September 2008

ULTRA LOW DISTORTION

AMPLIFIER MODULE

KC-5470 $52.25 plus postage

& packing

This ultra low distortion amplifier module uses the new Thermal Trak power transistors and is largely based on the high-performance

Class-A amplifier. This improved circuit has no need for a quiescent current adjustment or a

Vbe multiplier transistor and has an exceptionally low distortion figure. Kit supplied with PCB and all electronic components. Heatsink and power supply not included.

• Output Power: 135WRMS into 8 ohms and 200WRMS into 4 ohms

• Freq Resp. at 1W: 4Hz to 50kHz

• Harmonic Distortion: <.008% from 20Hz to 20kHz

BRIDGE MODE ADAPTOR

KC-5469 $14.50 plus postage & packing

IDEAL FOR STEREO AMPLIFIERS.

Lets you run a stereo amplifier in 'Bridged Mode' to effectively double the power available to drive a single speaker. There are no mods required on the amplifier and the signal processing is done by the kit before the signals are fed to the stereo amp. Ideal for say, using a stereo amp as an occasional PA amp for social functions or using an old amplifier to drive a sub-woofer in a home theatre.

• Kit supplied with silk screened PCB and all specified components.

• Requires balanced (+/-) power supply.

LED WATER LEVEL INDICATOR MKII KIT

KC-5449 $20.50 plus postage & packing

This simple circuit illuminates a string of LEDs to quickly indicate the water level in a rainwater tank. The more LEDs that illuminate, the higher the water level is inside the tank. The input signal is provided by ten sensors located in the water tank and connected to the indicator unit via-light duty figure- 8 cable. Kit supplied with PCB with overlay, machined case with screen printed lid and all electronic components.

• Requires 12-18V AC or DC 500mA plugpack.

PIC LOGIC PROBE KIT

KC-5457 $8.75 plus postage & packing

Most logic probes are designed to operate on 5V rails. This design operates on a wide voltage range down to 2.8V so it's suitable for use on the most modern circuits. It's also extremely compact with SMT devices on a PCB only 5mm wide, so it will fit inside a very slim case. It's capable of picking up a pulse only 50mS long and will also detect and hold infrequent pulses when in latch mode. Kit includes PCB and all specified electronic components including pre-programmed PIC. You'll need to add your own case and probe - a clear ballpoint pen case and needle, works well.

THEREMIN SYNTHESISER KIT

KC-5295 $34.95 plus postage & packing

The Theremin is a strange musical instrument that was invented early last century but is still used today. The Beach Boys' classic hit "Good Vibrations" featured a Theremin. By moving your hand between the antenna and the metal plate, you can create unusual sound effects.

Kit includes a machined, silkscreened, and pre drilled case, circuit board, all electronic components with clear English instructions.

• Required 9VDC wall adaptor

RR-0700 $10.00 plus
postage & packing
Great for experiments or selecting
the best resistance for a circuit.
Choose from 36 x 0.25W 5%
resistors ranging from 5 ohms to
1M ohms. Comes complete with
leads and insulated crocodile clips.

IR REMOTE EXTENDER MKII KIT

KC-5432 $14.50 plus postage & packing Operate your DVD player or digital decoder using its remote control from another room. It picks up the signal from the remote control and sends it via a 2-wire cable to an infrared LED located close to the device. This improved model features fast data transfer, capable of transmitting pay TV digital remote control signals using the Pace 400 series decoder. Kit supplied with case, screen printed front panel, PCB with overlay and all electronic components.

• Requires 9 VDC power and 2-wire cable

POST & PACKING CHARGES

Order Value Cost $25 - $49.99 $7.50 Max weight 12lb (5kg).

^{$50 - $99.99 $20}Heavier parcels POA. $100 - $199.99 $40

Minimum order $25.

$200 - $499.99 $60 $500+ $740

Note: Products are despatched from Australia, so local customs duty & taxes may apply. Prices valid till 30/09/08

HOW TO ORDER

•ORDER ON-LINE: www.jaycar.com

• PHONE: 1-800-784-0263

• FAX: + 61 2 8832 3118*

• EMAIL: techstore@jaycar.com

• POST: P.O. Box 107, Rydalmere NSW 2116 Australia

•ALL PRICING IN US DOLLARS

•MINIMUM ORDER ONLY $25

*Australian Eastern Standard Time (Monday - Friday 09.00 to 17. 30 GMT + 10 hours only)

Expect 10-14 days for air parcel delivery

LOW COST DIGITAL MULTIMETER

QM-1500 $4.00 plus postage

& packing

This full featured Digital Multimeter is perfect for the home handyman or young experimenter and will give years of reliable service. It features a huge 10A DC current range as well as diode and transistor testing functions. Also measures AC & DC volts and resistance. At this price you should buy two!