1석 오디오 회로도
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