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Article #10800Re: chaser lights
From: Josef Moellers
Date: Wed, 04 Nov 1992 11:10
Date: Wed, 04 Nov 1992 11:10
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1882 bytes
In <1992Oct30.194327.841@phx.mcd.mot.com> schuch@phx.mcd.mot.com (John Schuch) writes: >In article <1992Oct22.143703.6299@sactoh0.sac.ca.us> jhp@sactoh0.sac.ca.us (Jim H. Puga) writes: >>I understand I missed an article about how to build chaser lights >>and was hoping that if someone still has that article if they could >>e-mail it to me? >> >>If anyone has any suggestions on how to do it, I will gladly >>accept those also. >> >Build an oscillator with an LM555, connect to output to a 7493 >TTL binary counter, connect the BCD output to a 74154 TTL BCD to >1 of 16 decoder, connect the outputs of the 74154 to solid state >relays starting with output 1, connect the first unused output >from the 74154 to the reset input of the 7493. Jim was probably referring to these "KITT"-like lights that go back and forth. You'd have to use an up/down counter (don't have the number) and combine both the first and last output of the decoder to generate a trigger input to a flip-flop supplying the input for the up/down signal. -- | Josef Moellers | c/o Siemens Nixdorf Informationssysteme AG | | USA: mollers.pad@sni-usa.com | Abt. STO-XS 113 | Riemekestrasse | | !USA: mollers.pad@sni.de | Phone: (+49) 5251 835124 | D-4790 Paderborn |
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Path: arc1-ca.pugleaf.net!sparky!uunet!olivea!spool.mu.edu!uwm.edu!cs.utexas.edu!qt.cs.utexas.edu!yale.edu!ira.uka.de!math.fu-berlin.de!news.netmbx.de!Germany.EU.net!nixpbe!uranium!uranium!not-for-mail From: mollers.pad@sni.de (Josef Moellers) Newsgroups: sci.electronics Subject: Re: chaser lights Keywords: chaser lights Message-ID: <1d8b3mINNgqe@uranium.sto.pdb.sni.de> Date: 4 Nov 92 11:10:46 GMT References: <1992Oct22.143703.6299@sactoh0.sac.ca.us> <1992Oct30.194327.841@phx.mcd.mot.com> Sender: josef@uranium.sto.pdb.sni.de Organization: Siemens Nixdorf Informationssysteme AG, Paderborn, Germany Lines: 27