Dido Posted August 25, 2004 Report Share Posted August 25, 2004 Hi Can anyone suggest me a circuit for a 2 or 3 channel infra red remote control.I wanna make my AF Power Amp controlled with a remote.I have got a circuit hereIC1 is a Op Amp - LM308IC2 is some kind of tone decoder - LM567 Quote Link to comment Share on other sites More sharing options...
audioguru Posted August 25, 2004 Report Share Posted August 25, 2004 The LM308 and LM567 were discontinued many years ago. Quote Link to comment Share on other sites More sharing options...
Dido Posted August 25, 2004 Author Report Share Posted August 25, 2004 Well tell me something else Give me some links? Quote Link to comment Share on other sites More sharing options...
audioguru Posted August 25, 2004 Report Share Posted August 25, 2004 For the very-low-input-bias-current LM308, use a TL071. It has a FET-input. For the LM567 tone PPL/filter, use a high-Q bandpass filter circuit. Quote Link to comment Share on other sites More sharing options...
MP Posted August 26, 2004 Report Share Posted August 26, 2004 You can get the LM567 from Digikey (www.digikey.com) for 77 cents each. They have about 2500 of them in stock. Not exactly what I would call obsolete.The LM308 was not a very good op-amp. That is why it is gone. You would have wanted to replace it with something better even if it was still available.MP Quote Link to comment Share on other sites More sharing options...
Dido Posted August 26, 2004 Author Report Share Posted August 26, 2004 Thanks I`ll try another one circuit with different structure Quote Link to comment Share on other sites More sharing options...
surajbarkale Posted August 26, 2004 Report Share Posted August 26, 2004 check this outhttp://www.wimb.net/index.php?s=electr&page=7 Quote Link to comment Share on other sites More sharing options...
Dido Posted August 26, 2004 Author Report Share Posted August 26, 2004 10x A lot :) :) :) :) Quote Link to comment Share on other sites More sharing options...
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