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Goran
Double Platinum Member
Sweden
2203 Posts |
 Posted - 11/13/2007 : 14:41:35
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I�ve traded my Vox DA-5 and got myself an Epiphone Valve Jr. At first I didn�t like the sound of the Jr at all, changing both tubes and modifying the input have made it a bit better.
But I will do more mods to it for sure, it really needs that to perform as I like.
This amp is soldered with lead free solder, and it is the first time I experienced de-soldering this formulation, at first I thought my soldering iron was broken�..
Does lead free needs more heat?
If I can�t remove all the lead free solder does it interact with traditional solder, like galvanic corrosion or something?
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Edited by - Goran on 11/13/2007 14:42:32 |
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FRANZONI
Double Platinum Member
Ireland
3543 Posts |
Posted - 11/13/2007 : 15:06:59
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hi goran..... this should be a very interesting topic,i remember this coming up a while back and people on the forum had different opinions.i'm sure Dr Bob will give his verdict with his background in electronics,my own is based on using lead free solder when i was was working as a full time plumber/pipefitter..i came across it a lot in the last few years and i don't like it because it doesn't seem to take as easily as it's lead based brother and i find you have to make sure the item being soldered is absolutly spotless before starting..i don't know how it would work with going over older lead based solder joints especially in electronic circuits ..i.e old amps like my early 70's marshall etc.... another thing i read is that some study or other found that lead free solder can grow 'whiskers' which could possibly cause problems by touching other parts of the circuit...not something i would like to experience in a high voltage expensive valve amp...!!! .... i look forward to the replies bro'.....let the games begin... ... |
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Dr. Bob
Moderator
Australia
6593 Posts |
Posted - 11/13/2007 : 15:20:35
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   Don't even start me on this one.
My head already hurts
Yes Goran it needs more heat.
Yes, my head now really hurts.
Franzoni... stop drinking beer immediately!!! & go straight to Jail.
Do not pass Go -- Do not Collect $200...
On the way there, go buy all the 60/40 rosin core solder, that you can get your hands on,
that's if there is any left, after I have been there.
DISAPPOINTED ... Dr. Bob |
Edited by - Dr. Bob on 11/14/2007 07:07:08 |
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jack
Platinum Member
USA
1418 Posts |
Posted - 11/13/2007 : 16:02:55
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| I stocked up a about 10 pounds of 63-37 solder cause the lead-free is crap! |
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pedals 4 pv
Platinum Member
Canada
1351 Posts |
Posted - 11/13/2007 : 19:38:37
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Epiphone valve jr.s are made in China. In China there is a shortage of lead for solder as it has been all used in paint for childrens toys. |
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FRANZONI
Double Platinum Member
Ireland
3543 Posts |
Posted - 11/13/2007 : 20:27:08
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quote:
Originally posted by pedals 4 pv
Epiphone valve jr.s are made in China. In China there is a shortage of lead for solder as it has been all used in paint for childrens toys.
Don't get me going on this........i had the joy of sneaking around my kids room a couple of months ago to try to pull all the mattel toys she had got for her birthday that were recalled..... i posted on a local forum here that it was disgraceful that the quality control in china had let so much of this stuff slip through etc...and i was banned....!!! they said i was racist for slating the chinese...(the moderator obviously had no kids crying looking for her dora the explorer stuff....)and what do mattel do to keep the chinese happy...open a $30 million barbie shop in bejing......i would like to state for the record i'm not racist and i would be as quick if not quicker to complain if the factory was in ireland,but it makes you wonder about the quality control issues of stuff coming from there and i know that all electronic equipment coming into the E.U. as of now has to comply with the RoHS directive...there was even talk of banning chinese stuff at E.U.level coming into the union until the quality issues had been sorted out...... |
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pedals 4 pv
Platinum Member
Canada
1351 Posts |
Posted - 11/13/2007 : 22:01:26
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| Pretty fair to say that Epiphone suffered Quality issues after relocating to China. I hope no one took my comment about quality control problems in parts of Asia as racial in any way as it was not meant to be. |
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FRANZONI
Double Platinum Member
Ireland
3543 Posts |
Posted - 11/13/2007 : 22:37:18
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quote:
Originally posted by pedals 4 pv
Pretty fair to say that Epiphone suffered Quality issues after relocating to China. I hope no one took my comment about quality control problems in parts of Asia as racial in any way as it was not meant to be.
i took it in the spirit of fun/joke it was intended bro'.... it just reminded me of a bad experience on another forum here in ireland,everybody seems ready to see the bad side of everything... thats one of the things i love about this place no one is ready to jump down your throat over the smallest thing....people are happy to help before criticize.....
sorry for going off topic goran......... |
Edited by - FRANZONI on 11/13/2007 22:37:37 |
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Goran
Double Platinum Member
Sweden
2203 Posts |
Posted - 11/14/2007 : 06:52:26
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That�s OK Franzoni!
What is all the bad things about lead free solder?
I know one, hard to melt with my soldering iron..... |
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timbo
Silver Member
Australia
252 Posts |
Posted - 11/14/2007 : 08:15:21
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ok, so how much heat are we talking here? i have some super old dick smith iron that was probably made when he still owned DSE... it has adjustable heat control and gets fairly hot, but do you need a gas powered one???
and whats wrong with lead based solder... just don't lick your fingers after you've used some. and who doesn't love that "special" smoke it makes! |
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pedals 4 pv
Platinum Member
Canada
1351 Posts |
Posted - 11/14/2007 : 08:28:15
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| There is special flux for lead free solder maybe a little on the tip of the iron may help conduct the heat. As for bad things I suppose the lead is the bad stuff, for your health and the environment. |
Edited by - pedals 4 pv on 11/14/2007 08:33:28 |
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FRANZONI
Double Platinum Member
Ireland
3543 Posts |
Posted - 11/14/2007 : 12:13:49
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quote:
Originally posted by timbo
ok, so how much heat are we talking here? i have some super old dick smith iron that was probably made when he still owned DSE... it has adjustable heat control and gets fairly hot, but do you need a gas powered one???
and whats wrong with lead based solder... just don't lick your fingers after you've used some. and who doesn't love that "special" smoke it makes!
I use my friends gas powered iron as i find it works best when trying to solder to the back of pots etc... i find you get the heat up easier and you don't have a electric wire hanging out of the back which sometimes can be a problem if you have a little helper.........and yes we all love the special 'smoke' well i do anyway and as i've been using lead solder for many years it's probably why i'm a bit ............ |
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StratoSphere
Double Platinum Member
Canada
2232 Posts |
Posted - 11/14/2007 : 13:42:49
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gas powered iron??? ive never heard of these haha. does it have a pullstart or what?
please tell you me you can change gears. |
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jack
Platinum Member
USA
1418 Posts |
Posted - 11/14/2007 : 15:28:50
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quote:
Originally posted by StratoSphere
gas powered iron??? ive never heard of these haha. does it have a pullstart or what?
please tell you me you can change gears.
I think its just one of those small, almost pen sized butane torches... |
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FRANZONI
Double Platinum Member
Ireland
3543 Posts |
Posted - 11/14/2007 : 16:50:35
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quote:
Originally posted by jack
quote:
Originally posted by StratoSphere
gas powered iron??? ive never heard of these haha. does it have a pullstart or what?
please tell you me you can change gears.
I think its just one of those small, almost pen sized butane torches...
thats the one jack..... if the lead solder doesn't get you,the smell of the lighter fuel will............. |
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Goran
Double Platinum Member
Sweden
2203 Posts |
Posted - 11/15/2007 : 07:49:33
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OK, I asked the same question on a Swedish forum and here�s what I got:
Lead-free need higher temperature, hard to work with.
Looks grey even if the soldering joint is well done.
No problem mixing with lead solder, nothing bad can happen.
Can be purchased in the future, lead solder per se is not forbidden.
Some things can still use lead solder legally, like prototypes, medical devices, airplanes, cars and more
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Lead free solder
