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I have lost an email where someone described a binary decode chip for band decoding. The chip featured 4 inputs (binary) and 9 outputs. (i might be wrong about the 9 outputs) Anyone have this information? Lee K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - John W. (Kansas) ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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Hi Lee,
I'm taxing old memory cells but in the 7400 series of TTL chips the 74145 is a BCD decoder which with 4 lines in will give 0 to 9, or 10 outputs, if that is what you want. With a 74159 you can decode all four lines for 16 possible outputs. You don't have to worry about unused states if that is a chip you find. There may be a CMOS equivalent but I don't know it offhand. 73, Bob K2TK ex KN2TKR & K2TKR On 9/16/2011 11:27 AM, Lee Buller wrote: > > I have lost an email where someone described a binary decode chip for band > decoding. The chip featured 4 inputs (binary) and 9 outputs. (i might be wrong > about the 9 outputs) > > Anyone have this information? > > Lee > K0WA > > ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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In reply to this post by k0wa@swbell.net
Lee,
I use a 74ls145 1 of 10 decode. 73 Ken K5DNL ==================================================== ________________________________ From: Lee Buller <[hidden email]> To: Elecraft Reflector <[hidden email]> Sent: Friday, September 16, 2011 10:27 AM Subject: [Elecraft] Binary Decode Chip I have lost an email where someone described a binary decode chip for band decoding. The chip featured 4 inputs (binary) and 9 outputs. (i might be wrong about the 9 outputs) Anyone have this information? Lee K0WA In our day and age it seems that Common Sense is in short supply. If you don't have any Common Sense - get some Common Sense and use it. If you can't find any Common Sense, ask for help from somebody who has some Common Sense. Is Common Sense divine? Common Sense is the image of the Creator expressing revealed truth in my mind. - John W. (Kansas) ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[hidden email] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html |
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