🚀 go-pugleaf

   >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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   | !USA: mollers.pad@sni.de	| Phone: (+49) 5251 835124 | D-4790 Paderborn |

 You guessed it, I'm lazy, and I use GNUS.
 I'd like to bring my fruit to this conversation about the most useful electornics
application -- the running light. You could use some circuit designed to read analog
signal (voltage) and drive some leds (in row or matrix). The input of the IC is very
easy to use, just drive voltage into it, and the led for that voltage shines. Circuit
UAA170 is one of those, it's designed to drive a 4 by 4 matrix of leds, operariong 
voltage 12 volts. It's real easy to get different effects out of it, just try different
oscillators (sine wave being great for KITT-light) in the input head.

--
Teemu Hakala     |     E-Mail to :     | These opinions are mine, and so are
Kasavuorentie 9B | teemu@krksun.krk.fi | all those *ing mistakes. Do NOT think
02700 Kauniainen | Teemu.Hakala@krk.fi | abt. Radio Club when I make a mistake