Transformer insulateing tape?
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From: Spehro Pefhany on 19 Jun 2010 15:12 On Sat, 19 Jun 2010 11:57:02 -0700, the renowned Archimedes' Lever <OneBigLever(a)InfiniteSeries.Org> wrote: >On Sat, 19 Jun 2010 10:25:34 -0700, qrk <SpamTrap(a)spam.net> wrote: > >> I think you can get it from >>Newark, but you'll need to cut it yourself to proper width > > > It is very easy to find a vendor that will slit custom widths of that >tape. They buy it in VERY wide rolls just for that purpose. You'll end up with a lot of leftovers (maybe $500 worth) if you just want part of a roll. Here's a roll of dubious polyester tape from a dubious source for less than $3 delivered. They don't even say how thick it is. http://www.dealextreme.com/details.dx/sku.21352 Best regards, Spehro Pefhany -- "it's the network..." "The Journey is the reward" speff(a)interlog.com Info for manufacturers: http://www.trexon.com Embedded software/hardware/analog Info for designers: http://www.speff.com
From: Martin Riddle on 19 Jun 2010 15:25 "Martin Riddle" <martin_rid(a)verizon.net> wrote in message news:hvj452$4su$1(a)news.eternal-september.org... > > > "Hammy" <spam(a)spam.com> wrote in message > news:mrsp16186ug87255qercqsp34jm20hr0a0(a)4ax.com... >> >> What kind of tape can you use for insulation between primary to >> secondary of flyback transformer. I know mass produced professional >> designs use a 3M specialty tape. What I'm looking for is a tape I >> could pick up at Staples or some office supply store or hardware >> store. >> >> The vinyl electrical tape I can find is only rated for 600V and 80C >> MAX TEMP. >> >> Is there a commonly available tape that is good for higher temp and >> offers higher insulation? I've read of people using a mylar tape is >> there a brand name ,type anyone could recommend? >> >> This is for a 90 - 140Vac input flyback. > > I think Larkin mention http://www.tapecase.com/ , seems reasonable for > small qty. > > Cheers > Spoke too soon, Your looking for Polyester Film Thermo setting tape, works like Diamond craft paper. 3M 54 Try http://www.mpsupplies.com/3mtape54.html Any of the 3m tapes you'll have to buy in qty. I have yet to find open cases that you can buy a few rolls. Cheers
From: Archimedes' Lever on 19 Jun 2010 15:28 On Sat, 19 Jun 2010 15:12:35 -0400, Spehro Pefhany <speffSNIP(a)interlogDOTyou.knowwhat> wrote: > >You'll end up with a lot of leftovers (maybe $500 worth) if you just >want part of a roll. Bullshit. Most of the vendors that *do* offer custom slit widths also have a huge line of standard cut widths. The custom jobs are for those that know what they want, and are ready to make a minimum purchase and pay a tooling fee to get it. Also, if one *does* make a single custom order, they do not require that they buy the whole roll, because they use the remaining bit to make standard cut widths. THEY buy those widths pre-cut in bulk, but when left with surplus on the lathe, they slit what remains up to sell as well.
From: Martin Riddle on 19 Jun 2010 15:37 "Spehro Pefhany" <speffSNIP(a)interlogDOTyou.knowwhat> wrote in message news:495q16p1j5mrsqid08v3hmsnarsi7bnmo7(a)4ax.com... > On Sat, 19 Jun 2010 11:57:02 -0700, the renowned Archimedes' Lever > <OneBigLever(a)InfiniteSeries.Org> wrote: > >>On Sat, 19 Jun 2010 10:25:34 -0700, qrk <SpamTrap(a)spam.net> wrote: >> >>> I think you can get it from >>>Newark, but you'll need to cut it yourself to proper width >> >> >> It is very easy to find a vendor that will slit custom widths of >> that >>tape. They buy it in VERY wide rolls just for that purpose. > > You'll end up with a lot of leftovers (maybe $500 worth) if you just > want part of a roll. > > Here's a roll of dubious polyester tape from a dubious source for less > than $3 delivered. They don't even say how thick it is. > > http://www.dealextreme.com/details.dx/sku.21352 > > This at least has specs and is available in single(2) rolls http://www.tapecase.com/p.2545.649/low-static-polyimide-tape.aspx Cheers
From: Neon John on 19 Jun 2010 15:53
On Sat, 19 Jun 2010 12:50:40 -0400, Hammy <spam(a)spam.com> wrote: > >What kind of tape can you use for insulation between primary to >secondary of flyback transformer. I know mass produced professional >designs use a 3M specialty tape. What I'm looking for is a tape I >could pick up at Staples or some office supply store or hardware >store. You can get the correct polyester (mylar) tape from McMaster-Carr. Go to http://www.mcmaster.com and search for product #77075A23. John |