» MAKE: NOISE — Discuss this article

Showing messages 1 through 5 of 5.

• Circuit Components List?
  You must be logged in to reply.
  
  
  Hi - I was wondering if there is a list somewhere for the components used in the PCB project? Thanks,
  
  Mark
  Austin

  Posted by mark s.hall on May 31, 2005 at 15:58:56 Pacific Time

• Circuit Components List?
  You must be logged in to reply.
  
  
  Sure,
  
  R1 1K ohm
  R2 1M ohm ( variable )
  R3 470 ohm
  
  C1 1Uf
  C2 .01 Uf
  
  LED just about any type, the negative side usually has a little flat area in the plastic package. if you look into the LED you will see a little square attached to one lead and a little gold wire going into the tiny chip. The lead with the chip is usally negative and the wire lead is usually positive.
  
  IC 555
  
  ----------------------
  
  with these components it should oscillate around 1 per sec when the variable resister is at the maximum. The
  output ( pin 3 ) can also be hooked up to a cheap speaker.

  Posted by andrew@argyle.org on May 31, 2005 at 20:06:09 Pacific Time

• Circuit Components List?
  You must be logged in to reply.
  
  
  

  Posted by 051017 on August 06, 2008 at 08:25:03 Pacific Time

• Circuit Components List?
  You must be logged in to reply.
  
  
  I have been told that in order to dispose of Ferric Chloride one must place steel or iron parts into the solution for a few days. Remove the metals and add washing soda (a detergent)and let it air dry. It can then be thrown away as a non-hazardous waste

  Posted by karelh on April 07, 2007 at 23:53:47 Pacific Time

• pcb making
  You must be logged in to reply.
  
  
  That blue film stuff is good for making PCBs... but not much better than printing out your design on a laser printer and ironing it on a clean copper board
  
  Here's a good site with some details.
  http://www.fullnet.com/u/tomg/gooteepc.htm
  
  Also, if anyone has any ideas on what can be done with spent ferric chloride -- I'd like to know....
  
  Cheers
  
  MacQ
  
  

  Posted by pantocrator on June 01, 2005 at 12:57:47 Pacific Time