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## Refrigeration system

Refrigeration system: This is a refrigeration system diagram. this is the raw diagram for the refrigeration system. every air condition or freeze are the same diagram. there will be an air compressor and 2 condensers. One is the hot condenser and the other one is the cold condenser. there we …

## Echo circuit diagram

Echo circuit diagram: This is the Echo circuit diagram for the amplifier. it’s a mono pre-amplifier. it’s needed for the microphone section. this circuit runs with 12 voltages.  Component list:   P1+P2+P5+P6+P7+P8=104. P3+P4=470. P9+P10=2n2. V1=20k. C1=47uf/50v. C2=1uf/50v. R1=22k. R2=4k7. R3+R4+R6+R7=10k. R5=15k. R8=220/2w. Z1=5.1v.  transistor circuit diagram of 2sa1943 and 2sc5200 Build …

## 200w amplifier circuit board

200w amplifier circuit board: This is the 200w amplifier circuit board. this diagram can make 200 watts. in this diagram, we can use 2 transistors. we can use 2sc5200 & 2sa1943. or mj2955&2n3055. we can use any of the transistors. PNP and NPN transistors. here we can use 30-0-30 voltages …

## Amplifier Driver Circuit Diagram

Amplifier Driver Circuit Diagram: This is an Amplifier Driver Circuit Diagram. here used 2n3055 and 2n2955. 2n3055 is an NPN transistor and 2n2955 is a PNP transistor. we can use transistors according to our watts. here needs positive negative and ground voltage. we also can use 2sc5200 and 2sa1943 transistors.  …

## how to make a power amplifier

how to make a power amplifier: This is a 500-watt circuit diagram. here used a driver circuit board. this circuit can be used in every transistor circuit. here we are using 50-0-50 voltage and 10 amperes. we know 1 transistor can take 1.3 amperes. how to make power amplifier. 2sc5200 …

## Amplifier driver circuit board

Amplifier driver circuit board: This is an Amplifier driver circuit board. it’s a mono diagram. we can use 2 transistors to unlimited transistors. here we can use only PNP and NPN transistors. and 1st leg will be the base, 2nd leg will be the collector and 3rd leg will be …

## Amplifier circuit using sanken

Amplifier circuit using sanken: This is an Amplifier circuit using sunken. here used 2 transistors. sanken transistors. we are using 50-0-50 voltage and 5 amperes. voltage X amperes = watts. 50X5=250 watts transformer. it’s a mono circuit. if needs stereo sound then it needs a dual board. and must need …

## Midrange control circuit diagram

Midrange control circuit diagram: This is a midrange control circuit diagram for an amplifier. this circuit is only for the bass control. every amplifier needs this type of pre-amplifier. without this circuit, the sound can’t be nice. it’s small and simple to make. this is a mono board. if we …