1석 오디오 회로도

 

 

 

http://toyfab.tistory.com/506

 

 

 

 

 

2석

 

 

참고1) http://myplace.frontier.com/~bwalker1945/1QAFAmp.html

 

 

 

 

 

 

 

2석 오디오 앰프

참고 : http://sci-toys.com/scitoys/scitoys/computers/solderless/amplifier.html

 

 

 

"Quick and Dirty" Audio Amplifiers

참고 : http://www.elexp.com/t_audio.htm

 

Circuit #1

 

 

 

Circuit #2

 

For Circuit #1         Circuit #1 w/CA3130:        For Circuit #2:
----------------------------------------------------------------------
1 LM741 Op Amp         1 CA3130 Op Amp             1 2N3904 Transistor
2 1 uF   Capacitor     2 1uF Capacitor             2 1 uF Capacitor
1 10 uF Capacitor      1 10 uF Capacitor           1 1K .5W Resistor
4 10K .5W 1% Res       1 100pF Capacitor           1 10K .5W Resistor
1 100K .5W Res         4 10K .5W 1% Res            1 100K .5W Resistor
1 9V Battery           1 100K .5W Res              1 9V Battery
1 9V Battery Snap                                  1 9V Battery Snap

 

 

누구나 쉽게 만들수 있다.

 

 

 

 

 

 

Parts List:
1 – 2N3904 NPN transistor
2 – 10K resistors
1 – 100 K resistor
1 – 0.1 uF ceramic capacitor
1 – 1 uF ceramic capacitor
1 – 3V – 9V battery and holder

 

 

 

Circuit Pre-Amp With Transistor

 

 

 

 

 

Parts list for this one transistor audio amplifier:
http://www.oddmix.com/tech/tr_audio_amplifier_1t.html
                          B1 - 1.5 Volt cell - an AA alkaline is fine
                          C1 - Electrolytic Capacitor 10 uF 6-10 VDC
                          Q1 - Transistor, NPN, silicon general purpose
                          R1 - Resistor, 100 K, 1/4 Watt Carbon
                          300 Ohms headphones or small speaker