Re: [Elecraft] Stripping toroid leads

Let's end this thread at this time. We actually closed it mid-day yesterday due to the large number of postings. :-) 73, Eric Moderator /elecraft.com/ On 4/6/2016 8:45 PM, Edward R Cole wrote: Ron, Most coils I am winding are typically No.22 to No.16 solid copper magnet wire. I hold the

Re: [Elecraft] Stripping toroid leads

Subject: Re: [Elecraft] Stripping toroid leads Message-ID: <001801d19032$cc8d1e60$65a75b20$@biz> Content-Type: text/plain; charset="us-ascii" Ed's approach is one that I've used from time to time, but let me add one caution. Be very careful to avoid nicking the wire. It's ver

Re: [Elecraft] Stripping toroid leads

ecraft@mailman.qth.net<mailto:elecraft@mailman.qth.net> Subject: Re: [Elecraft] Stripping toroid leads On 4/6/2016 2:44 PM, EricJ wrote: > Looks identical to the wirewrap tools that were around ~30+ years ago or > so. I still have one as the fine wire is great for making minor PCB > changes or r

Re: [Elecraft] Stripping toroid leads

On 4/6/2016 2:44 PM, EricJ wrote: Looks identical to the wirewrap tools that were around ~30+ years ago or so. I still have one as the fine wire is great for making minor PCB changes or repairs. Never thought to load it with enamel wire as you do. It would make it even easier to make those

Re: [Elecraft] Stripping toroid leads

t to remove the insulation. > I see some online for <$30. Are they any good? > > 73, > N2TK, Tony > > -Original Message- > From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Fred > Jensen > Sent: Wednesday, April 06, 2016 1:45 PM > To: ele

Re: [Elecraft] Stripping toroid leads

coatings. I do use a wade of steel wool to wisk the material off. No abrasions and no nicks. Mel, K6KBE From: Ron D'Eau Claire <r...@cobi.biz> To: Elecraft@mailman.qth.net Sent: Wednesday, April 6, 2016 11:33 AM Subject: Re: [Elecraft] Stripping toroid leads Ed's ap

Re: [Elecraft] Stripping toroid leads

016 11:33 AM Subject: Re: [Elecraft] Stripping toroid leads Ed's approach is one that I've used from time to time, but let me add one caution. Be very careful to avoid nicking the wire. It's very easy to do with fine wire most often by an accidental press where you start removing the

Re: [Elecraft] Stripping toroid leads

Looks identical to the wirewrap tools that were around ~30+ years ago or so. I still have one as the fine wire is great for making minor PCB changes or repairs. Never thought to load it with enamel wire as you do. It would make it even easier to make those changes/repairs. Eric KE6us On

Re: [Elecraft] Stripping toroid leads

AC7AC -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Edward R Cole Sent: Wednesday, April 6, 2016 9:36 AM To: Elecraft@mailman.qth.net Subject: Re: [Elecraft] Stripping toroid leads I always figured the enamel should be removed. I just scrape them

Re: [Elecraft] Stripping toroid leads

I don't remember where I found this idea - might have been on this forum - or youtube... I have an old 30W soldering iron. I removed the tip and replaced it with a Phillips-head bolt the same size thread. Took a 3/32 drill bit, and drilled into the Phillips-head out abt 1/2inch deep. Put the

Re: [Elecraft] Stripping toroid leads

ony -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Fred Jensen Sent: Wednesday, April 06, 2016 1:45 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Stripping toroid leads Damp kitchen sponge works great. My Weller solder station has a little

Re: [Elecraft] Stripping toroid leads

Damp kitchen sponge works great. My Weller solder station has a little one with cuts in it in the base of the holder. Whatever enamel contamination ends up of the iron tip comes right off and the tip is shiny and bright again. 73, Fred K6DGW - Northern California Contest Club - CU in the

Re: [Elecraft] Stripping toroid leads

I try to keep a working wood-burner pencil for jobs that will ruin the tin on my soldering pencil. I often clean the trash off the leads, or pencil, by wiping them with a rag or cloth glove. Dick, n0ce On 4/6/2016 11:35 AM, Edward R Cole wrote: I always figured the enamel should be removed.

Re: [Elecraft] Stripping toroid leads

I always figured the enamel should be removed. I just scrape them with a small razor knife which leaves the copper bright and ready for tinning. Melting the enamel with my solder iron results in a messy glob on the iron and not a very clean lead. I don't own a solder pot but could see that

Re: [Elecraft] Stripping toroid leads

On 4/6/2016 11:13 AM, Dave Heil wrote: ...eight enameled leads off the bench. He then straightened the leads and dipped them all about 3/8" into a solder pot. Remember Vector's "wiring pencil?" You used it to wire a breadboard with #32 enameled

Re: [Elecraft] Stripping toroid leads

An old engineer at Foster Transformer in Cincinnati once showed me a method which caused the Ideal company to take their new abrasive enamel removing machine off the market: The fellow took a newly-made transformer with about eight enameled leads off the bench. He then straightened the leads

Re: [Elecraft] Stripping toroid leads

al Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of lstavenhagen Sent: Tuesday, April 5, 2016 5:52 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Stripping toroid leads Glad I use the sandpaper method on my toroid leads lol. In fact, funny this should come up, bec

Re: [Elecraft] Stripping toroid leads

LS, Yes, the solder blob method works best with a wide tip on the iron to hold a substantial blob of solder and a temperature of 800 degF. I use my Hakko 808 for stripping leads, and it works wonderfully. The only downside is that the enamel residue accumulates in the desoldering tip and I

Re: [Elecraft] Stripping toroid leads

Glad I use the sandpaper method on my toroid leads lol. In fact, funny this should come up, because I just started winding my new K2's toroids this evening. But the solder blob method fails on this kit in exactly the same way as it did on my first K2 some years ago. It's possible that the tip in

Re: [Elecraft] Stripping toroid leads

The wire Elecraft supplies is in the category of "Thermalese" which is heat strippable, but if you get wire from an electric motor shop, that insulation will likely be "Formvar" which resists heat and must be mechanically stripped. 73, Don W3FPR On 4/5/2016 7:17 PM, Scott Ellington wrote:

Re: [Elecraft] Stripping toroid leads

There are two very different kinds of insulation used on magnet wire. One type, which I presume Elecraft uses, can be stripped with solder and a sufficiently hot soldering iron. It's also fairly easy to scrape off. The other, "heavy polythermaleze", or whatever it's called these days, is

Re: [Elecraft] Stripping toroid leads

I seem to recall they could produce cyanide fumes. Best to use good ventilation and a fume extractor fan with filter if you are doing a lot of them. I like the smell of solder flux, but after reading about the health problems they can cause I invested in a fume extractor here. 73 from David

Re: [Elecraft] Stripping toroid leads

Yes, the fumes from that burnt enamel are quite nasty. I would say they are more harmful than normal solder flux vapors. 73, Don W3FPR On 4/5/2016 6:58 PM, Dauer, Edward wrote: The ³Blob Method² worked well for me in building the K2 (and now the K1); but it might be important not to inhale.

[Elecraft] Stripping toroid leads

The ³Blob Method² worked well for me in building the K2 (and now the K1); but it might be important not to inhale. At the time I looked into what¹s in the fumes when both the solder and the enamel coating on the wire are smoking. While I don¹t know exactly what the coating is on the particular