In a message dated 16/02/2010, gmvoeth@........... writes: I have in the past ( like 1970s ) seen wire that is "like" 40 guage paired magnet wire which was designed to be used with expendable bathythermograph probes. I have never seen such wire available to anything but government. Hi Geoff, Go to _www.wires.co.uk_ (http://www.wires.co.uk) , select Copper wire from the left column list and then Bonded Bifilar Wire. 30 AWG is 0.010" dia. 32SWG is 0.0092" dia This is really to thick for winding sensor coils in my opinion. See _http://www.dave-cushman.net/elect/wiregauge.html_ (http://www.dave-cushman.net/elect/wiregauge.html) Lets say twin 30 gauge copper wire which is enameled on a 1000 or more foot spool ? I would think this be the right kind of wire to make a center tapped sensor coil ? I would just use two reels of copper wire. Cut open an old aerosol spray can and extract the 6" of small diameter plastic tube. Cut ~3" off this and feed both wires through it. Use it to guide both wires onto your coil former as you wind it. I am quite happy winding coils of 38 to 40 AWG wire. It is easy to handle and it does not break very easily. If you try to use 1 or 2 thou wire, it does get a bit difficult to handle. If you buy wire with polyurethane insulation, you can solder it directly with a hot iron - the insulation just melts. You may need to search for a suitable source in the USA. _http://www.alliedelec.com/_ (http://www.alliedelec.com/) stock 36 AWG Beldsol Magnet wire in 1/2 lb reels. Hi Folks, In the past I have used 38ga copper wire for making standard magnet coils. I have a friend who gave me a spool of 40ga copper magnet wire, approx 1lb. Ted, could you wind off 1 oz reels of fine wire? This should be enough to wind a sensor coil. Regards, Chris Chapman In a message dated 16/02/2010, gmvoeth@........... writes:I have=20 in the past ( like 1970s ) seen wire that is "like" 40 guage paired magn= et=20 wire which was designed to be used with expendable bathythermograph=20 probes.
I have never seen such wire available to anything but=20 government.Hi Geoff,Go to www= ..wires.co.uk, select Copper wire from the=20 left column list and then Bonded Bifilar Wire.30 AWG is 0.010" dia. 32SWG is 0.0092" dia = DIV>This is really to thick for winding sensor co= ils in=20 my opinion.See http://www.dave-cushman.net/elect/wiregauge.html<= /DIV>Lets say=20 twin 30 gauge copper wire which is enameled on a 1000 or more foot spool= =20 ?
I would think this be the right kind of wire to make a center= tapped=20 sensor coil ?I would just use two reels of copper wire. Cu= t open=20 an old aerosol spray can and extract the 6" of small diameter plastic tube= .. Cut=20 ~3" off this and feed both wires through it. Use it to guide both wires on= to=20 your coil former as you wind it.I am quite happy winding coils of 38 to 40 AW= G=20 wire. It is easy to handle and it does not break very easily. If you try= to use=20 1 or 2 thou wire, it does get a bit difficult to handle.If you buy wire with polyurethane insulation,= you=20 can solder it directly with a hot iron - the insulation just melts.You may need to search for a suita= ble source=20 in the USA.http:= //www.alliedelec.com/ stock 36=20 AWG Beldsol Magnet wire in 1/2 lb reels.Hi=20 Folks, In the past I have used 38ga copper wire for making= =20 standard magnet coils. I have a friend who gave me a spool= of 40ga=20 copper magnet wire, approx 1lb.Ted, could you wind off 1 oz reels= of fine=20 wire? This should be enough to wind a sensor coil.Regards,Chris Chapman[ Top ] [ Back ] [ Home Page ]