electro-music.com   Dedicated to experimental electro-acoustic
and electronic music
 
    Front Page  |  Articles  |  Radio
 |  Media  |  Forum  |  Wiki  |  Links  |  Store
Forum with support of Syndicator RSS
 FAQFAQ   CalendarCalendar   SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   LinksLinks
 RegisterRegister   ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in  Chat RoomChat Room 
Live streaming at radio.electro-music.com

  host / artist show at your time
  Rob Adventures in Sound
Please visit the chat
 Forum index » DIY Hardware and Software
This noob needs help
Post new topic   Reply to topic Moderators: jksuperstar, Scott Stites, Uncle Krunkus
Page 2 of 2 [29 Posts]
View unread posts
View new posts in the last week
Mark the topic unread :: View previous topic :: View next topic
Goto page: Previous 1, 2
Author Message
fldrvr



Joined: Jul 13, 2006
Posts: 33
Location: USA

PostPosted: Tue Aug 01, 2006 11:25 am    Post subject: Reply with quote  Mark this post and the followings unread

By "saturate" do you mean "fry the transistor"? I guess I'm really looking at 3v, since I'm looking to use a button cell cr2032 battery (the particular case I'm looking at won't really fit larger).

Do I think it might be safer to put a resistor in front of Q1 as well? Will these affect the sound, in your opinion?
Back to top
View user's profile Send private message
Uncle Krunkus
Moderator


Joined: Jul 11, 2005
Posts: 4758
Location: Sydney, Australia
Audio files: 52
G2 patch files: 1

PostPosted: Tue Aug 01, 2006 3:35 pm    Post subject: Reply with quote  Mark this post and the followings unread

A CR2032 probably won't be able to deliver enough current to hurt anything. But if you want it to last, you'll need to get the sound you like with the least current flow anyway. So experiment with putting resistors on the Col. of Q2, and the Base of Q1 to start with. Everything you do will affect the sound, but that's a good thing! Cool
_________________
What makes a space ours, is what we put there, and what we do there.
Back to top
View user's profile Send private message Visit poster's website
fldrvr



Joined: Jul 13, 2006
Posts: 33
Location: USA

PostPosted: Wed Aug 02, 2006 6:30 am    Post subject: Reply with quote  Mark this post and the followings unread

Cool, thanks for the advice! Very Happy
Back to top
View user's profile Send private message
fldrvr



Joined: Jul 13, 2006
Posts: 33
Location: USA

PostPosted: Thu Aug 10, 2006 6:57 am    Post subject: Reply with quote  Mark this post and the followings unread

The other thing is, on the 4093 schem, each section has two pins going in to one out. The schem I put above only seems to indicate one "in". So I'm a bit confused there.

http://www.play-hookey.com/digital/experiments/rtl_schmitt.html

For my above question, what I meant was that "each 'Schmitt trigger' section has two pins going in to one out" on the 4093. Yet the schem for the trigger I posted here only seems to indicate one "in". Also, there are two schematics posted under "Schmitt trigger" there, it seems to me the first one is an oscillator, while the second one is just the trigger.. Is this correct?

Yeah, it might be easier to get the chip, but I've got a ton of transistors and resistors right now, I don't see much point in buying something else. Besides, there something to be said for a challenge.

The WSG is definitely on my list, too.

Thanks all
Back to top
View user's profile Send private message
Display posts from previous:   
Post new topic   Reply to topic Moderators: jksuperstar, Scott Stites, Uncle Krunkus
Page 2 of 2 [29 Posts]
View unread posts
View new posts in the last week
Goto page: Previous 1, 2
Mark the topic unread :: View previous topic :: View next topic
 Forum index » DIY Hardware and Software
Jump to:  

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum
e-m mkii

Please support our site. If you click through and buy from
our affiliate partners, we earn a small commission.


Forum with support of Syndicator RSS
Powered by phpBB © 2001, 2005 phpBB Group
Copyright © 2003 through 2009 by electro-music.com - Conditions Of Use