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Wire guage on LPF's ?

"andyfoad@..." #1303 Can anyone confirm what the wire guage is as used on the LPF's please ? I make it either 28 or 30 SWG. I've stuffed up a few toroids and run out of wire, so I need to be sure of the guage, especially since the pcb holes are a tight fit with very little tolerance, but yet I want to use the thickest I can just to give it whatever (small) extra strength I can for what it's worth. 73 de Andy G0FTD
Hans Summers #1304 Hi Andy The wire is specified as 28AWG (0.37mm). According to the PCB layout program, the specified drill size for the toroid holes is 0.6mm but I suppose some thickness is required also for the through-hole plating. 73 Hans G0UPL toggle quoted message Show quoted text On Tue, Jun 4, 2013 at 11:34 AM, andyfoad@... <andyfoad@...> wrote: ? Can anyone confirm what the wire guage is as used on the LPF's please ? I make it either 28 or 30 SWG. I've stuffed up a few toroids and run out of wire, so I need to be sure of the guage, especially since the pcb holes are a tight fit with very little tolerance, but yet I want to use the thickest I can just to give it whatever (small) extra strength I can for what it's worth. 73 de Andy G0FTD
"Colin XSD" #1306 开云体育 Hi Andy, ? If it is any help, I have managed to used 0.5mm Enamelled Copper Wire on an LPF, it was a tight fit but not too tight once the Enamelling was cleared off. ? ? 73, Colin M0XSD. ? toggle quoted message Show quoted text From: andyfoad@... Sent: Tuesday, June 4, 2013 10:34 AM To: QRPLabs@... Subject: [QRPLabs] Wire guage on LPF's ? ? ? Can anyone confirm what the wire guage is as used on the LPF's please ? I make it either 28 or 30 SWG. I've stuffed up a few toroids and run out of wire, so I need to be sure of the guage, especially since the pcb holes are a tight fit with very little tolerance, but yet I want to use the thickest I can just to give it whatever (small) extra strength I can for what it's worth. 73 de Andy G0FTD
"andyfoad@..." #1305 Cheers Hans. I've just put in my order for some of the Scientific Wire Company. (Used them for years, always a good supplier.) I have plenty of 0.5mm, but the through plating is taking up a little of the diameter, enough to make life a bit difficult so I'd rather get a reel in and have it in stock for the future. 73 de Andy G0FTD --- In QRPLabs@..., Hans Summers <hans.summers@...> wrote: Hi Andy The wire is specified as 28AWG (0.37mm). According to the PCB layout program, the specified drill size for the toroid holes is 0.6mm but I suppose some thickness is required also for the through-hole plating. Jun 4, 2013 at 11:34 AM, andyfoad@... < andyfoad@...> wrote: ** Can anyone confirm what the wire guage is as used on the LPF's please ? I make it either 28 or 30 SWG. I've stuffed up a few toroids and run out of wire, so I need to be sure of the guage, especially since the pcb holes are a tight fit with very little tolerance, but yet I want to use the thickest I can just to give it whatever (small) extra strength I can for what it's worth. 73 de Andy G0FTD
"andyfoad@..." #1307 Hi Colin, Yeah I got sway with it on one, but not the other. Just a bit too much plating in the whole to allow it to fit. Using 0.5mm wire is nicer though. It does allow quite a bit more tensile strength to hold the toroids in place. 73 de Andy toggle quoted message Show quoted text --- In QRPLabs@..., "Colin XSD" <m0xsd@...> wrote: Hi Andy, If it is any help, I have managed to used 0.5mm Enamelled Copper Wire on an LPF, it was a tight fit but not too tight once the Enamelling was cleared off. 73, Colin M0XSD.
"Colin XSD" #1308 开云体育 Yes Andy, that was my thinking as well. ? What I have done on other boards is clear the hole with a piece of the Enamelled Copper Wire with the end cut across at 45degrees, it seems good enough to clear the excess solder and if you are too heavy handed (like I often am) the wire will just bend before it does any damage (unlike a drill bit). ? ? 73, Colin M0XSD. ? toggle quoted message Show quoted text From: andyfoad@... Sent: Tuesday, June 4, 2013 11:34 AM To: QRPLabs@... Subject: [QRPLabs] Re: Wire guage on LPF's ? ? ? Hi Colin, Yeah I got sway with it on one, but not the other. Just a bit too much plating in the whole to allow it to fit. Using 0.5mm wire is nicer though. It does allow quite a bit more tensile strength to hold the toroids in place. 73 de Andy --- In mailto:QRPLabs%40yahoogroups.com, "Colin XSD" wrote: > > Hi Andy, > > If it is any help, I have managed to used 0.5mm Enamelled Copper Wire on an LPF, it was a tight fit but not too tight once the Enamelling was cleared off. > > > 73, Colin M0XSD. > >

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