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Article #10800

Re: chaser lights

#10800
From: Josef Moellers
Date: Wed, 04 Nov 1992 11:10
27 lines
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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  |
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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>
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