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100W
HiFi MOSFET Amp

100W HiFi MOSFET Amp

The
neat thing about the series 5000 is that it was built
around new (at the time) Hitachi lateral power MOSFETs.
Most power MOSFETs (VMOS, trenchFETs, HexFETs etc) use a
vertical structure, where the current flows vertically.
This has the advantage of stunningly low Rds and hence
high efficiency, but does nothing for linearity or
capacitance. Lateral MOSFETs are a much simpler
structure, where the gate oxide is formed on a flat
substrate, and the current flows across the substrate.
This results in well defined, controllable device
parameters, good linearity, and relatively low gate
capacitance. However, the Rds of lateral MOSFETs is
nothing to write home about.

MOSFETs also have a high input impedance at low
frequencies, and are capable (when driven by a suitable
source) of extremely high slew-rates. Of course this
very attribute makes them rather prone to HF oscillation
when improperly compensated, but with careful design
they're capable of impressive intermod performance.

Related
Links

Accurate
LC Meter

60MHz
Frequency Meter / Counter

1Hz
- 2MHz Function Generator

Voltmeter
Ammeter

ESR
Meter / Transistor Tester / LC Meter

Accurate
0-500MHz RF Power Meter

DS18S20
Dual Temperature Meter

BA1404
HI-FI Stereo FM Transmitter

BH1417
Stereo PLL FM Transmitter

500mW
FM / VHF Transmitter Amplifier /
Booster

50mW
BH1417 Stereo PLL FM Transmitter

Phone
FM Transmitter

TV
Transmitter with Audio

5
Watt FM Amplifier

TDA7000
FM Receiver / TV Tuner / Aircraft
Receiver

NJM2035
HI-FI Stereo Encoder / Multiplexer

USB
Voltmeter

USB
IO
Board

Downloads

Project documentation

HEX Program

100W HiFi
MOSFET Amp - Link

Accurate
LC Meter

Build your own
Accurate LC Meter (Capacitance Inductance Meter)
and start making your own coils and inductors.
This LC Meter allows to measure incredibly small
inductances making it perfect tool for making
all types of RF coils and inductors. LC Meter
can measure inductances starting from 10nH -
1000nH, 1uH - 1000uH, 1mH - 100mH and
capacitances from 0.1pF up to 900nF. The circuit
includes an auto ranging as well as reset switch
and produces very accurate and stable
readings.

PIC
Volt Ampere Meter

Volt
Ampere Meter measures voltage of 0-70V or 0-500V
with 100mV resolution and current consumption
0-10A or more with 10mA resolution. The meter is
a perfect addition to any power supply, battery
chargers and other electronic projects where
voltage and current must be monitored. The meter
uses PIC16F876A microcontroller with 16x2
backlighted LCD.

60MHz
Frequency Meter / Counter

Frequency Meter / Counter measures frequency
from 10Hz to 60MHz with 10Hz resolution. It is a
very useful bench test equipment for testing and
finding out the frequency of various devices
with unknown frequency such as oscillators,
radio receivers, transmitters, function
generators, crystals, etc.

1Hz
- 2MHz XR2206 Function
Generator

1Hz - 2MHz XR2206
Function Generator produces high quality sine,
square and triangle waveforms of high-stability
and accuracy. The output waveforms can be both
amplitude and frequency modulated. Output of 1Hz
- 2MHz XR2206 Function Generator can be
connected directly to 60MHz Counter for setting
precise frequency output.

BA1404
HI-FI Stereo FM Transmitter

Be "On Air" with your own radio station! BA1404
HI-FI Stereo FM Transmitter broadcasts high
quality stereo signal in 88MHz - 108MHz FM band.
It can be connected to any type of stereo audio
source such as iPod, Computer, Laptop, CD
Player, Walkman, Television, Satellite Receiver,
Tape Deck or other stereo system to transmit
stereo sound with excellent clarity throughout
your home, office, yard or camp ground.

USB
IO Board

USB IO Board is a
tiny spectacular little development board /
parallel port replacement featuring
PIC18F2455/PIC18F2550 microcontroller. USB IO
Board is compatible with Windows / Mac OSX /
Linux computers. When attached to Windows IO
board will show up as RS232 COM port. You can
control 16 individual microcontroller I/O pins
by sending simple serial commands. USB IO Board
is self-powered by USB port and can provide up
to 500mA for electronic projects. USB IO Board
is breadboard compatible.

ESR
Meter / Capacitance / Inductance / Transistor
Tester Kit

ESR Meter kit is
an amazing multimeter that measures ESR values,
capacitance (100pF - 20,000uF), inductance,
resistance (0.1 Ohm - 20 MOhm), tests many
different types of transistors such as NPN, PNP,
FETs, MOSFETs, Thyristors, SCRs, Triacs and many
types of diodes. It also analyzes transistor's
characteristics such as voltage and gain. It is
an irreplaceable tool for troubleshooting and
repairing electronic equipment by determining
performance and health of electrolytic
capacitors. Unlike other ESR Meters that only
measure ESR value this one measures capacitor's
ESR value as well as its capacitance all at the
same time.

Audiophile
Headphone Amplifier Kit

Audiophile headphone amplifier kit includes
high quality audio grade components such as Burr
Brown OPA2134 opamp, ALPS volume control
potentiometer, Ti TLE2426 rail splitter,
Ultra-Low ESR 220uF/25V Panasonic FM filtering
capacitors, High quality WIMA input and
decoupling capacitors and Vishay Dale resistors.
8-DIP machined IC socket allows to swap OPA2134
with many other dual opamp chips such as
OPA2132, OPA2227, OPA2228, dual OPA132, OPA627,
etc. Headphone amplifier is small enough to fit
in Altoids tin box, and thanks to low power
consumption may be supplied from a single 9V
battery.

Arduino
Prototype Kit

Arduino Prototype is a spectacular development
board fully compatible with Arduino Pro. It's
breadboard compatible so it can be plugged into
a breadboard for quick prototyping, and it has
VCC & GND power pins available on both sides
of PCB. It's small, power efficient, yet
customizable through onboard 2 x 7 perfboard
that can be used for connecting various sensors
and connectors. Arduino Prototype uses all
standard through-hole components for easy
construction, two of which are hidden underneath
IC socket. Board features 28-PIN DIP IC socket,
user replaceable ATmega328 microcontroller
flashed with Arduino bootloader, 16MHz crystal
resonator and a reset switch. It has 14 digital
input/output pins (0-13) of which 6 can be used
as PWM outputs and 6 analog inputs (A0-A5).
Arduino sketches are uploaded through any
USB-Serial adapter connected to 6-PIN ICSP
female header. Board is supplied by 2-5V voltage
and may be powered by a battery such as Lithium
Ion cell, two AA cells, external power supply or
USB power adapter.

200m
4-Channel 433MHz Wireless RF Remote
Control

Having
the ability to control various appliances inside
or outside of your house wirelessly is a huge
convenience, and can make your life much easier
and fun. RF remote control provides long range
of up to 200m / 650ft and can find many uses for
controlling different devices, and it works even
through the walls. You can control lights, fans,
AC system, computer, printer, amplifier, robots,
garage door, security systems, motor-driven
curtains, motorized window blinds, door locks,
sprinklers, motorized projection screens and
anything else you can think of.

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