Build Your Own Clone Message Board

It is currently Mon May 20, 2013 8:36 pm

All times are UTC - 6 hours





Post new topic Reply to topic  [ 5 posts ] 
Author Message
 Post subject: solder touching on back of board
PostPosted: Fri Apr 08, 2011 12:13 pm 
Offline

Joined: Thu Apr 07, 2011 2:37 pm
Posts: 6
when soldering the diodes in place i noticed 2 spots where the holes are very close together. especially a spot one the right of the board where there are 2 x 1N4148 or 1N914 's right next together.

my question is when i solder them, is it crucial that the solder does not touch or is it okay if a little bit connects. its a tight spot and i'm having difficulty keeping it separate.


Top
 Profile  
 
 Post subject: Re: solder touching on back of board
PostPosted: Fri Apr 08, 2011 1:21 pm 
Offline
Moderator
User avatar

Joined: Tue Jan 02, 2007 1:24 pm
Posts: 6308
Location: Albany, NY
It depends. Those diodes you mention are for signal clipping and are already connected in parallel, head-to-tail, so in that case it makes no difference if the adjacent solder joints run together. Usually, if two eyelets are so close together that it's difficult to keep them from connecting, it's because they're already connected with the board tracing. If you hold the board up with a bright back-light, you can generally see the tracing between eyelets quite easily.

Probably the most common occurrence of adjacent eyelets being close when they shouldn't connect is for electrolytic caps. But it's pretty easy to keep the solder from bridging between the two joints unless your soldering technique is very poor or you're using too large of a tip on your iron.

_________________
“My favorite programming language is SOLDER” - Bob Pease (RIP)

My Website * My Musical Gear * My DIY Pedals: Pg.1 - Pg.2


Top
 Profile  
 
 Post subject: Re: solder touching on back of board
PostPosted: Fri Apr 08, 2011 7:41 pm 
Offline

Joined: Thu Apr 07, 2011 2:37 pm
Posts: 6
so ideally i dont want shit ton of solder bunging up the back of the board. i just got a new iron to replace the one i was using. gonna go back and clean up a few joints.

thanks!


Top
 Profile  
 
 Post subject: Re: solder touching on back of board
PostPosted: Thu Dec 29, 2011 9:30 pm 
Offline

Joined: Fri Nov 25, 2011 10:23 am
Posts: 1
Hi. This is my first build. I hate to hi-jack an old post, but I'm running into this same issue with the triangle beaver and understand about the head-to-tail alignment, but I seem to have soldered connections on both ends (head-to-tail AND tail-to-head, in a loop). Should this concern me? I see you saying that these are parallel, so it sounds like I'm OK. Just want to be sure before I blow this build.

By the way, short of getting my eyes right on the resistor color bands (thank God I have a good multimeter), this build has been a blast. Thanks BYOC! I'll be sure to post pics when I'm done.

Thad


Top
 Profile  
 
 Post subject: Re: solder touching on back of board
PostPosted: Thu Dec 29, 2011 9:40 pm 
Offline
Moderator
User avatar

Joined: Tue Jan 02, 2007 1:24 pm
Posts: 6308
Location: Albany, NY
tbiser wrote:
Hi. This is my first build. I hate to hi-jack an old post, but I'm running into this same issue with the triangle beaver and understand about the head-to-tail alignment, but I seem to have soldered connections on both ends (head-to-tail AND tail-to-head, in a loop). Should this concern me? I see you saying that these are parallel, so it sounds like I'm OK.
You are indeed OK. That's how clipping diode pairs work--connected head to tail at both ends. Because an audio signal is AC--a sine wave that goes positive and negative--one diode clips the ascending signal while the one of opposite polarity clips the descending signal.

_________________
“My favorite programming language is SOLDER” - Bob Pease (RIP)

My Website * My Musical Gear * My DIY Pedals: Pg.1 - Pg.2


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 5 posts ] 

All times are UTC - 6 hours


Who is online

Users browsing this forum: No registered users and 1 guest


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 post attachments in this forum

Search for:
Jump to:  
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group