aimans Posted February 4, 2007 Report Share Posted February 4, 2007 what is a good replacement[if at all] for IC 4027 for the transistor tester on this site? Quote Link to comment Share on other sites More sharing options...
ante Posted February 4, 2007 Report Share Posted February 4, 2007 Why replace it? ??? Quote Link to comment Share on other sites More sharing options...
audioguru Posted February 4, 2007 Report Share Posted February 4, 2007 An ordinary CD4047 IC is available nearly everywhere (except RadioShack and a few weird countries).It costs only $..55US at Digikey. They have thousands of them in stock. Quote Link to comment Share on other sites More sharing options...
aimans Posted February 4, 2007 Author Report Share Posted February 4, 2007 i have a CD4047 and also a 4020 IC, which one is a beeter replacement for 4027? Quote Link to comment Share on other sites More sharing options...
audioguru Posted February 4, 2007 Report Share Posted February 4, 2007 I typed CD4047 by mistake before. The CD4027 is the IC that is used in the transistor tester project, a CD4047 and a CD4020 are completely different.Digikey has thousands of CD4027 ICs in stock for only $.55US. Quote Link to comment Share on other sites More sharing options...
hotwaterwizard Posted February 9, 2007 Report Share Posted February 9, 2007 CD4020 Datasheethttp://www.ee.washington.edu/stores/DataSheets/cd4000/cd4020.pdfCD4027 Datasheethttp://www.ee.washington.edu/stores/DataSheets/cd4000/cd4027.pdfCD4047 Datasheethttp://www.ee.washington.edu/stores/DataSheets/cd4000/cd4047.pdf Quote Link to comment Share on other sites More sharing options...
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