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Rangkaian Amplifier 150W Crossover Aktif

Amplifier 150W Active Crossover

Crossover Active Crossover or Tone Control 3 Band

Power Amplifier 150W with 4 channel

Series 150W Amplifier with Active Crossover (Active Crossover) is very interesting. In fact this series using the chip power amplifier 4 channel. Well, as Active Crossover (Active Crossover) here we also use a chip that can separate the bass tones, middle range and treble, the output from the Active Crossover (Active Crossover) directly can be reinforced by power amplifier.

Power Chip 4-channel amplifier that we use is SANYO LA47536 which have power outputs up to 150W, while for Active Crossover (Active Crossover) we used LF353 from National Semiconductor.
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Rangkaian Jam digital RTC Menggunakan Bascom 8051

 Rangkaian Jam digital RTC menggunakan Bascom 8051RTC with Bascom 8051 Micro controller Circuit Scheme

 Rangkaian Jam digital RTC menggunakan Bascom 8051
Projects this time we use language BASIC for the programmer. In addition, we also introduced the real time clock the programmer on AT89C2051. If you are not patient to try to please tough first series of its image.
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Rangkaian Konverter USB to RS232 Menggunakan IC FT232

If you do not have the RS232 port is one way to change the USB port into the RS232 port using IC FT232. This is the Converter USB to RS232 With IC FT232

Converter USB to RS232 With IC FT232 SchemeConverter USB to RS232 With IC FT232 Circuit Scheme

Converter USB to RS232 With IC FT232 PcbConverter USB to RS232 With IC FT232 Layout
Read MoreRangkaian Konverter USB to RS232 Menggunakan IC FT232

Rangkaian Wireless Microphone

Gambar Skema Rangkaian Wireless Microphone

Komponen Rangkaian Wireless Microphone

R1 = 10K (brown-black-orange)
R2,R3 = 100K (brown-black-yellow)
R4 = 470 ohm (yellow-violet-brown)
C1,C3 = 4.7pF (4p7), ceramic
C2,C4 = 4.7uF-16V, electrolytic
C5 = 0.001uF (1nF), ceramic
C6 = 470pF, ceramic
Q1,Q2 = 2N2222, NPN transistor
L1 = 1uH, variable inductor
Mic = Electret mike, 2 wires
Couple Notes:
Q1 amplifies the input signal via C4 from the electret microphone.
Q2 acts as an oscillator and the signal coming off C2 is fed onto the base of Q2.
L1/C1 is a so called ‘tank’ circuit and operates in the 88-105MHz band on your regular AM/FM radio dial.
L1 is a 1uH variable inductor coil to be able to tune it a little bit, and the range of 1uH is approximate.
The antenna can be as simple as a 8″ (21cm) piece of wire of any kind.
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Converter 12 Volt to 9 Volt DC

Gambar Skema Converter 12volt to 9volt DC

Converter 12 Volt  to 9 Volt DC12 Volt to 9 Volt DC Converter Component List:

R1 = 560 ohm
C1 = 1000uF/40V, Electrolytic
C2 = 10uF/25V, Electrolytic
C3 = 330nF, Ceramic
Z1 = 9.1V, 1watt zener
Q1 = ECG184, NTE184
Read MoreConverter 12 Volt to 9 Volt DC

Rangkaian Audio Amplifier 2 Watt

Gambar Skema Rangkaian Mini Audio Amplifier 2 Watt

Ampilifier this series is designed to be input into the mini-speaker box 2, 4 and 8 ohm.rangkaian this switch is also equipped with Bass-Booster.dapat in the output path to connect the walkman, mini disc, iPod, CD Player, Computers and other devices that have similar lines to its headphone output.

In this series without using the IC design by using the methods that seemed a bit behind in jaman.Ampilfier supply voltage with 12 v.switch SW1 akan produce sound bass-booster, but at the same time the volume should be reinforced as compensation on the loss of high frequency.

Komponen Rangkaian Audio Amplifier 2 Watt


P1_____________10K Log.Potentiometer

R1,R2__________33K 1/4W Resistors

R3_____________33R 1/4W Resistor

R4_____________15K 1/4W Resistor

R5,R6___________1K 1/4W Resistors

R7____________680R 1/4W Resistor

R8____________120R 1/2W Resistor

R9____________100R 1/2W Trimmer Cermet


C1,C2__________10µF 63V Electrolytic Capacitors

C3____________100µF 25V Electrolytic Capacitor

C4,C7_________470µF 25V Electrolytic Capacitors

C5_____________47pF 63V Ceramic Capacitor

C6____________220nF 63V Polyester Capacitor

C8___________1000µF 25V Electrolytic Capacitor


D1___________1N4148 75V 150mA Diode


Q1____________BC560C 45V 100mA PNP Low noise High gain Transistor

Q2____________BC337 45V 800mA NPN Transistor

Q3____________TIP31A 60V 4A NPN Transistor

Q4 ___________TIP32A 60V 4A PNP Transistor


SW1___________SPST switch

SPKR__________3-5 Watt Loudspeaker, 8, 4 or 2 Ohm impedance
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Rangkaian Amplified Ear

Gambar Rangkaian Amplified Ear

Amplified Ear Component List

P1_____________22K Log. Potentiometer (see Notes)

R1,R9__________10K 1/4W Resistors
R2______________1M 1/4W Resistor
R3______________4K7 1/4W Resistor
R4,R7_________100K 1/4W Resistor
R5______________3K9 1/4W Resistor
R6______________1K5 1/4W Resistor
R8_____________100R 1/4W Resistor

C1,C2_________100nF 63V Polyester or Ceramic Capacitors
C3,C6___________1µF 63V Polyester or Ceramic Capacitors
C4_____________10µF 25V Electrolytic Capacitor
C5____________470µF 25V Electrolytic Capacitor

D1___________1N4148 75V 150mA Diode

Q1,Q2,Q3,_____BC547 45V 100mA NPN Transistors
Q4____________BC337 45V 800mA NPN Transistor

MIC1__________Miniature electret microphone

SW1____________SPST Switch (Ganged with P1)

J1_____________Stereo 3mm. Jack socket

B1_____________1.5V Battery (AA or AAA cell etc.)

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Skema Rangkaian Amplifier 18W

Daftar Komponen Rangkaian Amplifier 18W

P1_____________22K Log. Potentiometer (Dual-gang for stereo)

R1______________1K 1/4W Resistor
R2______________4K7 1/4W Resistor
R3____________100R 1/4W Resistor
R4______________4K7 1/4W Resistor
R5_____________82K 1/4W Resistor
R6_____________10R 1/2W Resistor
R7_______________R22 4W Resistor (wirewound)
R8______________1K 1/2W Trimmer Cermet (optional)

C1____________470nF 63V Polyester Capacitor
C2,C5_________100µF 3V Tantalum bead Capacitors
C3,C4_________470µF 25V Electrolytic Capacitors
C6____________100nF 63V Polyester Capacitor

D1___________1N4148 75V 150mA Diode

IC1________TLE2141C Low noise, high voltage, high slew-rate Op-amp
Q1____________BC182 50V 100mA NPN Transistor
Q2____________BC212 50V 100mA PNP Transistor
Q3___________TIP42A 60V 6A PNP Transistor
Q4___________TIP41A 60V 6A NPN Transistor

J1______________RCA audio input socket

Power supply parts:

R9______________2K2 1/4W Resistor

C7,C8________4700µF 25V Electrolytic Capacitors

D2_____________100V 4A Diode bridge
D3_____________5mm. Red LED

T1_____________220V Primary, 15 + 15V Secondary, 50VA Mains transformer

PL1____________Male Mains plug

SW1____________SPST Mains switch
Read MoreSkema Rangkaian Amplifier 18W

Rangkaian Stereo PreAmplifier

Stereo PreAmplifier Component List:

P1_________________10K Log.Potentiometer (Dual-gang for stereo)
P2________________100K Log.Potentiometer (Dual-gang for stereo) (See Notes)

R1,R2_____________100K 1/4W Resistors
R3,R6______________15K 1/4W Resistors
R4_________________10K 1/4W Resistor
R5_________________22K 1/4W Resistor
R7__________________1K 1/4W Resistor
R8________________560R 1/4W Resistor

C1,C2,C5____________2µ2 63V Electrolytic Capacitors
C3________________470µF 35V Electrolytic Capacitor
C4__________________1µF 63V Polyester Capacitor
C6_________________47nF 63V Polyester Capacitor
C7_________________22µF 25V Electrolytic Capacitor

IC1_______________TL072 Dual BIFET Op-Amp

SW1________________DPST Switch
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Rangkaian Power Indicator 6 LED

Daftar Komponen Power Indicator 6 LED

R1_____________220R 1/2W Resistor
R2,R5,R6,R8____100R 1/4W Resistors
R10,R12,R14____100R 1/4W Resistors
R3_____________220R 1/4W Resistor
R4,R7__________330R 1/2W Resistors
R9_____________560R 1/2W Resistor
R11____________820R 1/2W Resistor
R13______________1K2 1/2W Resistor D1___________1N4004 400V 1A Diode
D2,D4,D6__BZX79C2V7 2.7V 500mW Zener Diodes
D3,D5,D7,D8,D9,D10 Red LEDs

  • The output power indicated by each LED must be doubled when 4 Ohms loads are driven.
  • The circuit can be adapted to suit less powerful amplifiers by reducing the number of LEDs and related voltage dividers.
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Rangkaian DC Power Supply 24 V

Component Rangkaian DC Power Supply:

P1____________500R Linear Potentiometer
P2_____________10K Log. Potentiometer

R1,R2___________2K2 1/2W Resistors
R3____________330R 1/4W Resistor
R4____________150R 1/4W Resistor
R5______________1R 5W Resistor

C1___________3300µF 35V Electrolytic Capacitor (see Notes)
C2______________1µF 63V Polyester Capacitor

D1,D2________1N5402 200V 3A Diodes
D3_____________5mm. Red LED

Q1____________BC182 50V 100mA NPN Transistor
Q2____________BD139 80V 1.5A NPN Transistor
Q3____________BC212 50V 100mA PNP Transistor
Q4 __________2N3055 60V 15A NPN Transistor

T1_____________220V Primary, 36V Center-tapped Secondary
50VA Mains transformer (see Notes)

PL1____________Male Mains plug

SW1____________SPST Mains switch

* P1 sets the maximum output current you want to be delivered by the power supply at a given output voltage.
* P2 sets the output voltage and must be a logarithmic taper type, in order to obtain a more linear scale voltage indication.
* You can choose the Transformer on the grounds of maximum voltage and current output needed. Best choices are: 36, 40 or 48V center-tapped and 50, 75, 80 or 100VA.
* Capacitor C1 can be 2200 to 6800µF, 35 to 50V.
* Q4 must be mounted on a good heatsink in order to withstand sustained output short-circuit. In some cases the rear panel of the metal box in which you will enclose the circuit can do the job.
* The 2N3055 transistor (Q4) can be replaced with the slightly less powerful TIP3055 type.

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