Wec #1 - Tune Generator, Weekly Electronic Challenge #1
| Electronics Forum |
 Help
 Search
 Members
 Calendar
|
| Welcome Guest ( Log In | Register ) | Resend Validation Email |
| Pages:12 ( Go to first unread post ) |    |
Wec #1 - Tune Generator, Weekly Electronic Challenge #1| biocow |
Posted: May 23, 2010 05:25 pm
 
|
||
 Newbie  Group: Members+ Posts: 16 Member No.: 29,436 Joined: May 11, 2010  |
Shoot. Sorry. I can do that tonight but not til about 8 pacific time. Is that OK? -------------------- I only run for 2 reasons. Away from danger and for the bus.
And I don't take the bus. |
||
  
|
| JoOngle |
Posted: May 23, 2010 07:03 pm
|
||||
 Forum Addict ++  Group: Moderators Posts: 7,847 Member No.: 3,818 Joined: December 12, 2005 |
Why? You're on a computer, right? Just take a screenshot of your YouTube video...frame of choice, and post the image  -------------------- If my soul was software, I could program myself and you.
|
||||
|
|
| biocow |
Posted: May 24, 2010 04:55 am
|
|
Newbie Group: Members+ Posts: 16 Member No.: 29,436 Joined: May 11, 2010 |
sorry, was out all day at maker faire. here's a pic.
pic http://www.biocow.com/e/wec1.jpg This post has been edited by biocow on May 24, 2010 04:57 am -------------------- I only run for 2 reasons. Away from danger and for the bus.
And I don't take the bus. |
|
|
| Abdullah M.A. |
Posted: May 24, 2010 02:28 pm
|
 Forum Addict ++ Group: Spamminator Taskforce Posts: 4,252 Member No.: 10,604 Joined: August 16, 2007 |
Hello JoOngle,
I just want to ask you about your circuit, did you make the second 555 produce different tunes?? or you used the counter to produce different tunes? thankx Abdulla -------------------- "A scientist can discover a new star, but he cannot make one. He would have to ask an engineer to do that."
"For an optimist the glass is half full, for a pessimist it's half empty, and for an engineer is twice bigger than necessary." |
|
|
| JoOngle |
Posted: May 24, 2010 02:43 pm
|
||
|
Forum Addict ++ Group: Moderators Posts: 7,847 Member No.: 3,818 Joined: December 12, 2005 |
I used only ONE of the NE555 to produce various tones, as I said in the video. -------------------- If my soul was software, I could program myself and you.
|
||
|
|
| draget |
Posted: May 24, 2010 02:53 pm
|
|
Forum Addict ++ Group: Cleanup Taskforce Posts: 5,483 Member No.: 1,770 Joined: December 31, 2004 |
Surprised everyone went for digital sounding tunes, I've seen a few before which modulate the 555 to various ends. A combination might have been interesting.
|
|
|
| Abdullah M.A. |
Posted: May 24, 2010 02:54 pm
|
||||
|
Forum Addict ++ Group: Spamminator Taskforce Posts: 4,252 Member No.: 10,604 Joined: August 16, 2007 |
How is that be possible?? did you use a varactor diode to change the capacitor value? Abdulla -------------------- "A scientist can discover a new star, but he cannot make one. He would have to ask an engineer to do that."
"For an optimist the glass is half full, for a pessimist it's half empty, and for an engineer is twice bigger than necessary." |
||||
|
|
| draget |
Posted: May 24, 2010 03:34 pm
|
||
|
Forum Addict ++ Group: Cleanup Taskforce Posts: 5,483 Member No.: 1,770 Joined: December 31, 2004 |
You can use pin 5 of the 555 to modulate it. |
||
|
|
| Abdullah M.A. |
Posted: May 24, 2010 04:50 pm
|
||||
|
Forum Addict ++ Group: Spamminator Taskforce Posts: 4,252 Member No.: 10,604 Joined: August 16, 2007 |
I know, but this will give you two tunes! Abdulla -------------------- "A scientist can discover a new star, but he cannot make one. He would have to ask an engineer to do that."
"For an optimist the glass is half full, for a pessimist it's half empty, and for an engineer is twice bigger than necessary." |
||||
|
|
| JoOngle |
Posted: May 24, 2010 06:56 pm
|
||
|
Forum Addict ++ Group: Moderators Posts: 7,847 Member No.: 3,818 Joined: December 12, 2005 |
I see things trough a different filter, while you guys might be educated engineers, I don't follow datasheets & schematics 100% all the time, I experiment out of my own knowledge, I sometimes (more often that not) make my own rules when I design, I push the components to the limits, I use their "off-set" capabilities to the max rather than their specified data, this construction with 4 rising notes in a 100% reproducible succession is no different. There's a 33 nF connected to earth and pin 6 of the Ne555, and a 15 nF connected from pin 6 to the Data output Qb of the 74LS163A Counter and a 470 k Resistor to Qc of the counter to pin 6 of the Ne555. And - yes - it works. -------------------- If my soul was software, I could program myself and you.
|
||
|
|
| biocow |
Posted: May 24, 2010 07:35 pm
|
|
Newbie Group: Members+ Posts: 16 Member No.: 29,436 Joined: May 11, 2010 |
JoOngle, love your circuit. Only reason I didn't vote for your circuit is I voted for mine. But still sad my only vote is mine. Thought I'd at least get a couple.
 -------------------- I only run for 2 reasons. Away from danger and for the bus.
And I don't take the bus. |
|
|
| Abdullah M.A. |
Posted: May 24, 2010 07:46 pm
|
||||
|
Forum Addict ++ Group: Spamminator Taskforce Posts: 4,252 Member No.: 10,604 Joined: August 16, 2007 |
I just want to say  you got really good results, TRY AND ERROR. Abdulla -------------------- "A scientist can discover a new star, but he cannot make one. He would have to ask an engineer to do that."
"For an optimist the glass is half full, for a pessimist it's half empty, and for an engineer is twice bigger than necessary." |
||||
|
|
0 User(s) are reading this topic (0 Guests and 0 Anonymous Users)
0 Members:
 Pages:12 |
|
:: support us ::
ElectronicsSkin by DutchDork & The-Force
Powered by Invision Power Board(U) v1.3.1 Final © 2003 IPS, Inc.