Spice is an analog circuit simulator which developed at the Electronics Research Laboratory of the University of California, Berkeley by Laurence Nagel. This is an open source software circuit simulator, you may try this software to simulate your circuit.

SPICE (Simulation Program with Integrated Circuit Emphasis) is a general-purpose open source analog electronic circuit simulator. It is a powerful program that is used in IC and board-level design to check the integrity of circuit designs and to predict circuit behavior.

This is a generel purpose amplifier circuit. You can use this circuit for general audio devices such as radio, mp3/mp4 player, cd/dvd player, computer and more.

Component part list:

R1 ____________ 200 Ohm
R2 ____________ 200K
R3 ____________ 30K
R5 ____________ 1K
R6 ____________ 5K
R7,R10 ________ 1 Meg (5%)
R8,R9 _________ 0.4 Ohm 5W
R11 ___________ 10K Pot
R12,R13 _______ 51K
R14 ___________ 47K

C1 ____________ 100uF/35V
C2 ____________ 0.011uF
C3 ____________ 3750pF
C4,C6 _________ 1000pF
C5,C7,C8 ______ 0.001uF
C9 ____________ 50pF
C10 ___________ 0.3uF
C11,C12 _______ 10,000uF/50V
U1,U2 _________ 741 Op Amp
U3 ____________ ICL8063
Q1 ____________ 2N3055
Q2 ____________ 2N3791

This  power inverter uses only 9 electronic components. This inverter circuit will turn 10 to 16VDC into 115V / 60Hz square wave AC power. It was able to operate AC equipment up to 25W.

The first section of the 555 timer is wires as an astable oscillator with R2 and C1 setting the frequency. The output is available at pin 5. The second section is wired as a phase inverter. That output is available at pin 9. Resistor R3 and R4 keep output transistor Q1 and Q2 from loading down the oscillator.

Read more about 25W Inverter circuit

This is my GCSE science work, I looked all over the internet, but can’t find information on this topic, are there any sites out there, which have pictures of circuits with two transistors.

I need to asses what effect Transistors have on society, but i’m not quite sure what devices they’re used in.

Are they used in _______
- Television?
- Cinemas?
- CD’s?
- X-Rays?
- MRI’s?

And any other technology you can think of that would ipmact society? Like medical devices etc?