http://www.circuitstoday.com/low-cost-amplifer An Authentic Resource on Electronics Wed, 08 Feb 2012 02:09:28 +0000 hourly 1 http://wordpress.org/?v= http://www.circuitstoday.com/low-cost-amplifer#comment-24846 Jonathan Sat, 09 Apr 2011 02:06:16 +0000 http://www.circuitstoday.com/?p=262#comment-24846 The plus goes to the top at "9V DC", negative at the bottom line. The plus goes to the top at “9V DC”, negative at the bottom
line.

]]> http://www.circuitstoday.com/low-cost-amplifer#comment-15238 cjsmack Tue, 15 Feb 2011 20:36:24 +0000 http://www.circuitstoday.com/?p=262#comment-15238 pls where am i gonna connect the positive and negative of the 9v battery . Please help me pls where am i gonna connect the positive and negative of the 9v battery . Please help me

]]> http://www.circuitstoday.com/low-cost-amplifer#comment-13172 Jonathan Sat, 29 Jan 2011 03:08:03 +0000 http://www.circuitstoday.com/?p=262#comment-13172 470uF input cap? Really? Try 10k for R5 and about 56-68k for R6 and a 10uF for C1. Also, use 1 ohm max for R1/2. Replacing R3 with a bootstrap of 330 ohm, 100 ohm and a 100uF cap would increase output, as well. Bias could be adjusted with a 1K pot across both diodes. Good luck! 470uF input cap? Really? Try 10k for R5 and about 56-68k for R6 and a 10uF for C1. Also, use 1 ohm max for R1/2. Replacing R3 with a bootstrap of 330 ohm, 100 ohm and a 100uF cap would increase output, as well. Bias could be adjusted with a 1K pot across both diodes. Good luck!

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