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[Alécio Costa - Brazil]

Have you guys been victims of cold/bad soldering?
It is incredible how many brand new computer monitors amd other related pro gear have been presenting these kind of problems down here.
It started with a DAT machine, then a digital board ,UPS,and two brand new computer monitors. What is up with the quality control of these companies?

[bigaudioblowhard]

I've been a victim of the COLD SHOULDER.

But seriously, yes, not to the degree you mention, perhaps I have no idea how much? Does anyone know if theres a way to check this?

I own a very nice prototype all tube phono pre amp I purchased from the designer. After some time I realized one channel was burning Grids in the first stage at a rate of about three per year. The other channel was fine after this first year. I contacted the designer and he claimed that being a prototype he whipped together for me it was possible there was a cold solder joint on G1 just behind the RIAA RC network. It appears a cold solder will affect tube life. Anyone experience this?

[Bob Olhsson]

Apple computer had huge problems in the past. MCI just boggles the mind.

[dcollins]

bigaudioblowhard wrote on Wed, 30 March 2005 12:18

But seriously, yes, not to the degree you mention, perhaps I have no idea how much? Does anyone know if theres a way to check this?

The best way to find bad connections is with a magnifying glass.  Most of the time, the bad one looks slightly different than the others.  In the olden days, you could just "touch up" any and all connections but when each chip has 500 pins, you just throw it away...

http://www.empf.org/empfasis/mar04/fail.htm

Quote:

I own a very nice prototype all tube phono pre amp I purchased from the designer. After some time I realized one channel was burning Grids in the first stage at a rate of about three per year. The other channel was fine after this first year. I contacted the designer and he claimed that being a prototype he whipped together for me it was possible there was a cold solder joint on G1 just behind the RIAA RC network. It appears a cold solder will affect tube life. Anyone experience this?

That doesn't make sense. Burning grids?

DC

[Viitalahde]

How about the lead-free solder that is gaining more and more use in the electronics industry?

To my best knowledge, that stuff is easier to fuck up and it also might have a tendency to "grow" - meaning that it can gain microscopic little spikes coming out of the solder joint. These might then short something in a tiny little SMD circuit. I remember some satellite went bollocks because of this.

I expect lead-free solder is going to place great demands on the QC of the industry..?

[Ed Littman]

Al Analog/Digital Mastering/Editing http://www.EdLittmanMastering.com http://Itunes.com/edlittman Jason Phair Full Member Offline Posts: 140 Re: "cold" (bad) soldering Many a time, especially in gear made in the far east. You'd think the 4 cents a day would be enough to get those 7 year Filipino kids to solder correctly! Jason Phair Advanced Production Group Dunkirk, NY http://www.advancedproductiongroup.com Formerly: Sound Services SUNY Fredonia Get that fucking thing off my vocal will ya? Thanks. Print Pages: [1]   Go Up « previous next » R/E/P Community > R/E/P > R/E/P Archives > Brad Blackwood > "cold" (bad) soldering   SMF 2.0.19 | SMF © 2021, Simple Machines | Terms and Policies XHTML RSS WAP2 Site Hosted By Ashdown Technologies, Inc. Page created in 0.05 seconds with 19 queries.

[Jason Phair]

Many a time, especially in gear made in the far east.

You'd think the 4 cents a day would be enough to get those 7 year Filipino kids to solder correctly!