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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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#41
Posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical
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Where to scavenge mu-metal?
MassiveProng wrote in
: On Thu, 12 Apr 2007 17:50:43 GMT, Rich Grise Gave us: Hey, Michael - just because _you_ can't figure out which name I'm using, doesn't mean that _I_ can't. ;-) Bool****. Have another drink, you alcoholic retard. I use the different names to distinguish between whether I'm being technical or goofing around. More bool****. You use them because secretly you want us all to know just how retarded you really are. Some people don't afford such simple considerations. :-) You're an idiot. Wanna play? |
#42
Posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical
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Where to scavenge mu-metal?
"Rich Grise" wrote in message news On Thu, 12 Apr 2007 02:29:41 +0000, Michael A. Terrell wrote: " wrote: No, he just can't figure out which of 20 names to use. Hey, Michael - just because _you_ can't figure out which name I'm using, doesn't mean that _I_ can't. ;-) I use the different names to distinguish between whether I'm being technical or goofing around. Some people don't afford such simple considerations. :-) Thanks! Rich Are you a solipsist, Rich? Regards Ian ;-) |
#43
Posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical
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Where to scavenge mu-metal?
You may find the cast-iron door of an old stove or wood furnace will
be all you need. Now *there's* a mental picture that deserves framing! -- Sparky |
#44
Posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical
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Where to scavenge mu-metal?
Think of it as a single, shorted secondary turn but *outside* the
laminations. Any field that leaks out of the transformer induces a current into the strap, and it in turn generates a field that fights the excitation. It should be thick, wide, and well-shorted, which means well soldered. Copper is best. John No need to ground, I presume... |
#45
Posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical
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Where to scavenge mu-metal?
On Fri, 13 Apr 2007 09:01:56 -0700, SparkyGuy
Gave us: Think of it as a single, shorted secondary turn but *outside* the laminations. Any field that leaks out of the transformer induces a current into the strap, and it in turn generates a field that fights the excitation. It should be thick, wide, and well-shorted, which means well soldered. Copper is best. John No need to ground, I presume... Have you formed the leads going to your project into twisted pair yet? I guarantee that will reduce injected noise a LOT. |
#46
Posted to sci.electronics.design,sci.electronics.repair,alt.engineering.electrical
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Where to scavenge mu-metal?
Don Lancaster wrote:
SparkyGuy wrote: Is this stuff prolific in old CRT monitors, or TVs? Need about a square foot or so... Sparky As soon as you cut it or otherwise stress it, mu metal becomes worthless. That is a completely garbage overstatement. Just the same, any tight bend (bending r less than 10 thicknesses) will require annealing in a reducing atmosphere. It is really quite intolerant of cold working if you wish to maintain the magnetic properties. Do not even flex it unnecessarily. -- JosephKK Gegen dummheit kampfen die Gotter Selbst, vergebens.Â*Â* --Schiller |
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