115/230V voltage switch key for transformer?
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From: Baron on 26 Nov 2009 16:26 Joerg wrote: > Baron wrote: >> Joerg wrote: >> >>> petrus bitbyter wrote: >>>> <osr(a)uakron.edu> schreef in bericht >>>> >> news:f664eb19-4b19-4565-b198-87d60393c2a8(a)j19g2000yqk.googlegroups.com... >>>> On Nov 24, 8:48 pm, Joerg <inva...(a)invalid.invalid> wrote: >>>>> Hello Folks, >>>>> >>>>> Never needed this before but now I do: What are those things >>>>> called that you unplug and insert 180 degrees rotated to switch >>>>> the primaries of a transformer between 115V operation (parallel) >>>>> and 230V operation (series)? Circuit board mount. >>>>> >>>>> Or better yet, does anyone know a source? Must be super cheap, as >>>>> in <<50c altogether in qties, as usual :-) >>>>> >>>>> Under categories such as "voltage selector" I only found fuse >>>>> holders with this feature in there, really expensive plus way too >>>>> large. I want to avoid a slide switch because someone could >>>>> accidentally hit it and ... *PHUT* >>>>> >>>>> -- >>>>> Regards, Joerg >>>>> >>>>> http://www.analogconsultants.com/ >>>>> >>>>> "gmail" domain blocked because of excessive spam. >>>>> Use another domain or send PM. >>>> | The classic term used in Marshall and other Audio Amps is voltage >>>> | selector plug. >>>> | >>>> | Somebody decided they should be removed from the electrical code. >>>> | Your left with the voltage selecting fuseholders. try schurter. >>>> | >>>> | Steve >>>> | >>>> >>>> FAIK that old method does not meet current EU safety regulations >>>> anymore. So that selectors became obsolete. >>>> >>>> Why a slide switch will not do? You can find voltage selector slide >>>> switches in which the slider is burried so deeply it can only be >>>> operated by a small screwdriver or something like that. Sliding it >>>> accidentaly seems next to impossible. >>>> >>> Not that easy anymore. Slide switches often don't have the >>> respective agency ratings and since they are primary side they must. >>> Also, it is very hard to find any that are rated 260V which is >>> required for countries such as the UK. >> >> Dunno if it helps, I've seen multi pole jumpers used for voltage >> selection where the cap has multiple links in it. >> > > Do you remember where or what brand it might have been? Sorry I don't really remember what kit it was in ! I do remember being curious enough to take the cap off to have a look and put it back on the wrong way round, blowing the mains fuse. A 30mm 3amp T type. Imagine 8 jumpers side by side in a single molding. -- Best Regards: Baron.
From: Joerg on 26 Nov 2009 16:58 Baron wrote: > Joerg wrote: > >> Baron wrote: >>> Joerg wrote: >>> >>>> petrus bitbyter wrote: >>>>> <osr(a)uakron.edu> schreef in bericht >>>>> > news:f664eb19-4b19-4565-b198-87d60393c2a8(a)j19g2000yqk.googlegroups.com... >>>>> On Nov 24, 8:48 pm, Joerg <inva...(a)invalid.invalid> wrote: >>>>>> Hello Folks, >>>>>> >>>>>> Never needed this before but now I do: What are those things >>>>>> called that you unplug and insert 180 degrees rotated to switch >>>>>> the primaries of a transformer between 115V operation (parallel) >>>>>> and 230V operation (series)? Circuit board mount. >>>>>> >>>>>> Or better yet, does anyone know a source? Must be super cheap, as >>>>>> in <<50c altogether in qties, as usual :-) >>>>>> >>>>>> Under categories such as "voltage selector" I only found fuse >>>>>> holders with this feature in there, really expensive plus way too >>>>>> large. I want to avoid a slide switch because someone could >>>>>> accidentally hit it and ... *PHUT* >>>>>> >>>>>> -- >>>>>> Regards, Joerg >>>>>> >>>>>> http://www.analogconsultants.com/ >>>>>> >>>>>> "gmail" domain blocked because of excessive spam. >>>>>> Use another domain or send PM. >>>>> | The classic term used in Marshall and other Audio Amps is voltage >>>>> | selector plug. >>>>> | >>>>> | Somebody decided they should be removed from the electrical code. >>>>> | Your left with the voltage selecting fuseholders. try schurter. >>>>> | >>>>> | Steve >>>>> | >>>>> >>>>> FAIK that old method does not meet current EU safety regulations >>>>> anymore. So that selectors became obsolete. >>>>> >>>>> Why a slide switch will not do? You can find voltage selector slide >>>>> switches in which the slider is burried so deeply it can only be >>>>> operated by a small screwdriver or something like that. Sliding it >>>>> accidentaly seems next to impossible. >>>>> >>>> Not that easy anymore. Slide switches often don't have the >>>> respective agency ratings and since they are primary side they must. >>>> Also, it is very hard to find any that are rated 260V which is >>>> required for countries such as the UK. >>> >>> Dunno if it helps, I've seen multi pole jumpers used for voltage >>> selection where the cap has multiple links in it. >>> >> Do you remember where or what brand it might have been? > > Sorry I don't really remember what kit it was in ! > > I do remember being curious enough to take the cap off to have a look > and put it back on the wrong way round, blowing the mains fuse. A 30mm > 3amp T type. > > Imagine 8 jumpers side by side in a single molding. > That's exactly what I am looking for. But it's like a looking for a needle in the hay stack with the chance that someone already took the needle away :-) -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Rich Grise on 27 Nov 2009 12:47 On Thu, 26 Nov 2009 13:58:54 -0800, Joerg wrote: > Baron wrote: >> Joerg wrote: >>> Baron wrote: >>>> >>>> Dunno if it helps, I've seen multi pole jumpers used for voltage >>>> selection where the cap has multiple links in it. >>>> >>> Do you remember where or what brand it might have been? >> >> Sorry I don't really remember what kit it was in ! >> >> I do remember being curious enough to take the cap off to have a look >> and put it back on the wrong way round, blowing the mains fuse. A 30mm >> 3amp T type. >> >> Imagine 8 jumpers side by side in a single molding. >> > That's exactly what I am looking for. But it's like a looking for a needle > in the hay stack with the chance that someone already took the needle away > :-) Have the factory set the jumper, then stick one of those "warranty void if this sticker is removed" stickers over it? Good Luck! Rich
From: Joerg on 27 Nov 2009 15:38 Rich Grise wrote: > On Thu, 26 Nov 2009 13:58:54 -0800, Joerg wrote: >> Baron wrote: >>> Joerg wrote: >>>> Baron wrote: >>>>> >>>>> Dunno if it helps, I've seen multi pole jumpers used for voltage >>>>> selection where the cap has multiple links in it. >>>>> >>>> Do you remember where or what brand it might have been? >>> >>> Sorry I don't really remember what kit it was in ! >>> >>> I do remember being curious enough to take the cap off to have a look >>> and put it back on the wrong way round, blowing the mains fuse. A 30mm >>> 3amp T type. >>> >>> Imagine 8 jumpers side by side in a single molding. >>> >> That's exactly what I am looking for. But it's like a looking for a needle >> in the hay stack with the chance that someone already took the needle away >> :-) > > Have the factory set the jumper, then stick one of those "warranty void if > this sticker is removed" stickers over it? > And then some kid does it anyhow, it goes wrong, and plaintiff claims the kid couldn't know because it wasn't printed on there in Swahili and wants the jury to "award" a couple million :-) -- Regards, Joerg http://www.analogconsultants.com/ "gmail" domain blocked because of excessive spam. Use another domain or send PM.
From: Baron on 27 Nov 2009 16:39
Joerg wrote: > Baron wrote: >> Joerg wrote: >> >>> Baron wrote: >>>> Joerg wrote: >>>> >>>>> petrus bitbyter wrote: >>>>>> <osr(a)uakron.edu> schreef in bericht >>>>>> >> news:f664eb19-4b19-4565-b198-87d60393c2a8(a)j19g2000yqk.googlegroups.com... >>>>>> On Nov 24, 8:48 pm, Joerg <inva...(a)invalid.invalid> wrote: >>>>>>> Hello Folks, >>>>>>> >>>>>>> Never needed this before but now I do: What are those things >>>>>>> called that you unplug and insert 180 degrees rotated to switch >>>>>>> the primaries of a transformer between 115V operation (parallel) >>>>>>> and 230V operation (series)? Circuit board mount. >>>>>>> >>>>>>> Or better yet, does anyone know a source? Must be super cheap, >>>>>>> as in <<50c altogether in qties, as usual :-) >>>>>>> >>>>>>> Under categories such as "voltage selector" I only found fuse >>>>>>> holders with this feature in there, really expensive plus way >>>>>>> too large. I want to avoid a slide switch because someone could >>>>>>> accidentally hit it and ... *PHUT* >>>>>>> >>>>>>> -- >>>>>>> Regards, Joerg >>>>>>> >>>>>>> http://www.analogconsultants.com/ >>>>>>> >>>>>>> "gmail" domain blocked because of excessive spam. >>>>>>> Use another domain or send PM. >>>>>> | The classic term used in Marshall and other Audio Amps is >>>>>> | voltage selector plug. >>>>>> | >>>>>> | Somebody decided they should be removed from the electrical >>>>>> | code. Your left with the voltage selecting fuseholders. try >>>>>> | schurter. >>>>>> | >>>>>> | Steve >>>>>> | >>>>>> >>>>>> FAIK that old method does not meet current EU safety regulations >>>>>> anymore. So that selectors became obsolete. >>>>>> >>>>>> Why a slide switch will not do? You can find voltage selector >>>>>> slide switches in which the slider is burried so deeply it can >>>>>> only be operated by a small screwdriver or something like that. >>>>>> Sliding it accidentaly seems next to impossible. >>>>>> >>>>> Not that easy anymore. Slide switches often don't have the >>>>> respective agency ratings and since they are primary side they >>>>> must. Also, it is very hard to find any that are rated 260V which >>>>> is required for countries such as the UK. >>>> >>>> Dunno if it helps, I've seen multi pole jumpers used for voltage >>>> selection where the cap has multiple links in it. >>>> >>> Do you remember where or what brand it might have been? >> >> Sorry I don't really remember what kit it was in ! >> >> I do remember being curious enough to take the cap off to have a look >> and put it back on the wrong way round, blowing the mains fuse. A >> 30mm 3amp T type. >> >> Imagine 8 jumpers side by side in a single molding. >> > > That's exactly what I am looking for. But it's like a looking for a > needle in the hay stack with the chance that someone already took the > needle away :-) Oddly enough I was scrapping an old Packard Bell computer today and noticed that the ISA modem had a very similar jumper system on it to select USA/EU standard. -- Best Regards: Baron. |