http://www.elecfree.com/electronic/3w-hi-fi-stereo-amplifier-by-2n1613/ Fri, 05 Dec 2008 10:30:43 +0000 http://wordpress.org/?v=2.5.1 http://www.elecfree.com/electronic/3w-hi-fi-stereo-amplifier-by-2n1613/#comment-946 3W HI-FI Stereo Amplifier by 2N1613 | วงจร โครงงาน อิเล็กทรอนิกส์ Thu, 18 Sep 2008 00:30:23 +0000 http://www.elecfree.com/electronic/3w-hi-fi-stereo-amplifier-by-2n1613/#comment-946 [...] Tr1 and Tr2 transistors funcitons as direct coupled voltage amplifiers. R6 resistor, D1 and D2 diodes determine the standby current of complement driver stage (Tr3/Tr4) and output stage (Tr5/Tr6). C3, C5, C6 and R3 help keeping stability. Amplifier’s input sensitivity is 400mA at 4 ohm load and 12V supply and 600mV at 8 ohm load and 17V supply. … วงจรแอมป์ขนาดเล็ก 3Watt ใช้ทรานซิสเตอร์ อ่านต่อ [...] [...] Tr1 and Tr2 transistors funcitons as direct coupled voltage amplifiers. R6 resistor, D1 and D2 diodes determine the standby current of complement driver stage (Tr3/Tr4) and output stage (Tr5/Tr6). C3, C5, C6 and R3 help keeping stability. Amplifier’s input sensitivity is 400mA at 4 ohm load and 12V supply and 600mV at 8 ohm load and 17V supply. … วงจรแอมป์ขนาดเล็ก 3Watt ใช้ทรานซิสเตอร์ อ่านต่อ [...]

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