bane84 Posted October 2, 2006 Report Share Posted October 2, 2006 Hi,Please does anyone have the PCB for 25W Mosfet audio amplifier,that can be found on: http://www.electronics-lab.com/projects/audio/001/index.htmlThanx! :) Quote Link to comment Share on other sites More sharing options...
MP Posted October 3, 2006 Report Share Posted October 3, 2006 Have you asked the author of the circuit?http://www.redcircuits.com/MP Quote Link to comment Share on other sites More sharing options...
bane84 Posted October 4, 2006 Author Report Share Posted October 4, 2006 I don't think author would give me the PCB design,because he sell it in kit.Anyway I startet schematics in Protel and very shortly I will have PCB.I was hopping that someone on this forum have it allready.Thanx anyway! :)P.S. How can I get lower range of frequency on this amp?It says it will play from 30-20,000Hz. Can I make it from 20-20,000Hz? Quote Link to comment Share on other sites More sharing options...
audioguru Posted October 5, 2006 Report Share Posted October 5, 2006 P.S. How can I get lower range of frequency on this amp?It says it will play from 30-20,000Hz. Can I make it from 20-20,000Hz?Coupling capacitors cut low frequencies:1) The 470nF value of C1 causes the output to be -3dB (half power) at 7.2Hz. If it is replaced by a 1uF film cap, the output will be -3dB at 3.4Hz and about -1dB at about 17Hz.2) The 100uF value of C7 is fine. It causes the output to be -3dB at 3.4Hz. Quote Link to comment Share on other sites More sharing options...
bane84 Posted October 5, 2006 Author Report Share Posted October 5, 2006 Thanx man! :)When I have time, will give a try.I also found PCB for this amp.It was created in Eagle program.By the first look it is ok.25mos.brd.zip Quote Link to comment Share on other sites More sharing options...
audioguru Posted October 5, 2006 Report Share Posted October 5, 2006 Hi Bane,I'm glad you found its pcb. Quote Link to comment Share on other sites More sharing options...
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