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#1
December 3rd 15, 03:20 PM
posted to uk.radio.amateur,rec.radio.amateur.homebrew
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60 / 40?
I wonder how many are still using the 60 / 40 (lead / tin or tin / lead?)
solder despite the Common Market (or whatver they call themselves these days) ruling that lead free must be used to the exclusion of all else? And how many are not using any solder at all because they are a variant of CBers and not actually _REAL_ radio amateurs? |
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#2
December 3rd 15, 04:06 PM
posted to uk.radio.amateur,rec.radio.amateur.homebrew
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60 / 40?
"gareth" wrote in message ... I wonder how many are still using the 60 / 40 (lead / tin or tin / lead?) solder despite the Common Market (or whatver they call themselves these days) ruling that lead free must be used to the exclusion of all else? me me me ...... |
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#3
December 3rd 15, 04:19 PM
posted to uk.radio.amateur,rec.radio.amateur.homebrew
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60 / 40?
"Jimbo in the Borders ..." wrote in message ... "gareth" wrote in message ... I wonder how many are still using the 60 / 40 (lead / tin or tin / lead?) solder despite the Common Market (or whatver they call themselves these days) ruling that lead free must be used to the exclusion of all else? me me me ...... that must be why all modern DIGITAL stuff breaks down just out of guarantee....so more crap into landfill.... stupid really because if it was 60/40 gluing it together it would still be working .... |
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#4
December 3rd 15, 04:49 PM
posted to uk.radio.amateur,rec.radio.amateur.homebrew
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60 / 40?
Jimbo in the Borders ... wrote:
that must be why all modern DIGITAL stuff breaks down just out of guarantee....so more crap into landfill.... stupid really because if it was 60/40 gluing it together it would still be working .... Most failures in modern digital stuff are because of bad electrolytic capacitors, mostly because of switchmode powersupplies that result in large AC currents through the capacitors. Once the ESR goes up, the caps heat up and dry out, causing the ESR to increase even more and this causes the type of failure you often see: the device runs fine until it is powercycled, then sometimes can work when it is left to heat up for a few minutes. This has nothing to do with the soldering. |
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#5
December 3rd 15, 04:54 PM
posted to uk.radio.amateur,rec.radio.amateur.homebrew
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60 / 40?
"Rob" wrote in message ... Jimbo in the Borders ... wrote: that must be why all modern DIGITAL stuff breaks down just out of guarantee....so more crap into landfill.... stupid really because if it was 60/40 gluing it together it would still be working .... Most failures in modern digital stuff are because of bad electrolytic capacitors, mostly because of switchmode powersupplies that result in large AC currents through the capacitors. Once the ESR goes up, the caps heat up and dry out, causing the ESR to increase even more and this causes the type of failure you often see: the device runs fine until it is powercycled, then sometimes can work when it is left to heat up for a few minutes. This has nothing to do with the soldering. that is good to hear...just avoid mains powerd units then ...good |
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#6
December 3rd 15, 05:00 PM
posted to uk.radio.amateur,rec.radio.amateur.homebrew
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60 / 40?
Jimbo in the Borders ... wrote:
"Rob" wrote in message ... Jimbo in the Borders ... wrote: that must be why all modern DIGITAL stuff breaks down just out of guarantee....so more crap into landfill.... stupid really because if it was 60/40 gluing it together it would still be working .... Most failures in modern digital stuff are because of bad electrolytic capacitors, mostly because of switchmode powersupplies that result in large AC currents through the capacitors. Once the ESR goes up, the caps heat up and dry out, causing the ESR to increase even more and this causes the type of failure you often see: the device runs fine until it is powercycled, then sometimes can work when it is left to heat up for a few minutes. This has nothing to do with the soldering. that is good to hear...just avoid mains powerd units then ...good A well designed battery operated unit has a switchmode regulator as well (or else it would require a Batteriser...), and those wall warts today are switchmode supplies as well. |
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#7
December 3rd 15, 05:05 PM
posted to uk.radio.amateur,rec.radio.amateur.homebrew
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60 / 40?
"Rob" wrote in message ... Jimbo in the Borders ... wrote: "Rob" wrote in message ... Jimbo in the Borders ... wrote: that must be why all modern DIGITAL stuff breaks down just out of guarantee....so more crap into landfill.... stupid really because if it was 60/40 gluing it together it would still be working .... Most failures in modern digital stuff are because of bad electrolytic capacitors, mostly because of switchmode powersupplies that result in large AC currents through the capacitors. Once the ESR goes up, the caps heat up and dry out, causing the ESR to increase even more and this causes the type of failure you often see: the device runs fine until it is powercycled, then sometimes can work when it is left to heat up for a few minutes. This has nothing to do with the soldering. that is good to hear...just avoid mains powerd units then ...good A well designed battery operated unit has a switchmode regulator as well (or else it would require a Batteriser...), and those wall warts today are switchmode supplies as well. tell me something Some "Expert" was on the radio saying that phone chargers should be unplugged as they use power even when not in use ...fair enough I thought if they have a transformer but I thought those lightweight switchmode units didn't draw any powe until the phone was plugged in? ... |
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#8
December 3rd 15, 05:08 PM
posted to uk.radio.amateur,rec.radio.amateur.homebrew
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60 / 40?
Jimbo in the Borders ... wrote:
"Rob" wrote in message ... Jimbo in the Borders ... wrote: "Rob" wrote in message ... Jimbo in the Borders ... wrote: that must be why all modern DIGITAL stuff breaks down just out of guarantee....so more crap into landfill.... stupid really because if it was 60/40 gluing it together it would still be working .... Most failures in modern digital stuff are because of bad electrolytic capacitors, mostly because of switchmode powersupplies that result in large AC currents through the capacitors. Once the ESR goes up, the caps heat up and dry out, causing the ESR to increase even more and this causes the type of failure you often see: the device runs fine until it is powercycled, then sometimes can work when it is left to heat up for a few minutes. This has nothing to do with the soldering. that is good to hear...just avoid mains powerd units then ...good A well designed battery operated unit has a switchmode regulator as well (or else it would require a Batteriser...), and those wall warts today are switchmode supplies as well. tell me something Some "Expert" was on the radio saying that phone chargers should be unplugged as they use power even when not in use ...fair enough I thought if they have a transformer but I thought those lightweight switchmode units didn't draw any powe until the phone was plugged in? ... That is right. I think they are required to draw less than a watt when nothing is plugged in. This is only possible with a switchmode design. However, I have seen several of those things fail, often in a somewhat explosive way (case blown open or apart, nasty smell). Never a fire, though. |
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#9
December 3rd 15, 05:10 PM
posted to uk.radio.amateur,rec.radio.amateur.homebrew
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60 / 40?
"Rob" wrote in message ... Jimbo in the Borders ... wrote: "Rob" wrote in message ... Jimbo in the Borders ... wrote: "Rob" wrote in message ... Jimbo in the Borders ... wrote: that must be why all modern DIGITAL stuff breaks down just out of guarantee....so more crap into landfill.... stupid really because if it was 60/40 gluing it together it would still be working .... Most failures in modern digital stuff are because of bad electrolytic capacitors, mostly because of switchmode powersupplies that result in large AC currents through the capacitors. Once the ESR goes up, the caps heat up and dry out, causing the ESR to increase even more and this causes the type of failure you often see: the device runs fine until it is powercycled, then sometimes can work when it is left to heat up for a few minutes. This has nothing to do with the soldering. that is good to hear...just avoid mains powerd units then ...good A well designed battery operated unit has a switchmode regulator as well (or else it would require a Batteriser...), and those wall warts today are switchmode supplies as well. tell me something Some "Expert" was on the radio saying that phone chargers should be unplugged as they use power even when not in use ...fair enough I thought if they have a transformer but I thought those lightweight switchmode units didn't draw any powe until the phone was plugged in? ... That is right. I think they are required to draw less than a watt when nothing is plugged in. This is only possible with a switchmode design. However, I have seen several of those things fail, often in a somewhat explosive way (case blown open or apart, nasty smell). Never a fire, though. I had a cheap chinky jonker go that way..... |
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#10
December 3rd 15, 06:06 PM
posted to uk.radio.amateur,rec.radio.amateur.homebrew
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60 / 40?
On 03/12/2015 15:20, gareth wrote:
I wonder how many are still using the 60 / 40 (lead / tin or tin / lead?) solder despite the Common Market (or whatver they call themselves these days) ruling that lead free must be used to the exclusion of all else? And how many are not using any solder at all because they are a variant of CBers and not actually _REAL_ radio amateurs? Wrong again Gareth!! tin lead solder is not banned "to the exclusion of all else". It is still allowed in biomedical, military and some avionics equipment and for the repair of items that were built with tin/lead. It is still easy to purchase 60/40. Jeff |
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