Re: [Elecraft] ECOM scare -- FW: Soldering lesson

2017-02-19 Thread Fred Jensen
Ummm ... I guess it depends on exactly what you do. I worked for a defense contractor for quite awhile, "When you were done with it ... shred it." One young fellow still had his dog tags on the chain around his neck. Fortunately they gagged the shredder before the chain strangled him. 73,

Re: [Elecraft] ECOM scare -- FW: Soldering lesson

2017-02-19 Thread Bill Frantz
My wife and I sas w photo of someone who had slipped while climbing and wearing a ring which caught. The skin on the finger was peeled back like a banana peel. We agreed that no wearing our rings in circumstances was more than a good idea. We like each other intact. I have a friend who

Re: [Elecraft] ECOM scare -- FW: Soldering lesson

2017-02-19 Thread Guy Olinger K2AV
On Sun, Feb 19, 2017 at 3:37 AM, Edward R Cole wrote: > One other consideration,if using metal tools around high current sources > (like batteries or power supplies): Shorting the terminals may cause rapid > heating and result in explosions. An exploding lead-acid battery

Re: [Elecraft] ECOM scare -- FW: Soldering lesson

2017-02-19 Thread Edward R Cole
One other consideration,if using metal tools around high current sources (like batteries or power supplies): Shorting the terminals may cause rapid heating and result in explosions. An exploding lead-acid battery can hit you with shrapnel and acid which can burn you, blind you, or cause

Re: [Elecraft] ECOM scare -- FW: Soldering lesson

2017-02-18 Thread Rose
ce and never put batteries in my pocket of > where they can short any longer. > > 73, Jim KG0KP > > -Original Message- > From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Don > Wilhelm > Sent: Saturday, February 18, 2017 6:01 PM > To: elecr

Re: [Elecraft] ECOM scare -- FW: Soldering lesson

2017-02-18 Thread Jim Miller
] ECOM scare -- FW: Soldering lesson I was involved in product testing in my former career. One large computing machine which I worked on had a backup battery consisting of 4 AA cells, which no-one thought would be a problem, but during environmental testing at shipping extremes, condensation formed

Re: [Elecraft] ECOM scare -- FW: Soldering lesson

2017-02-18 Thread Don Wilhelm
I was involved in product testing in my former career. One large computing machine which I worked on had a backup battery consisting of 4 AA cells, which no-one thought would be a problem, but during environmental testing at shipping extremes, condensation formed and created leakage paths. It

Re: [Elecraft] ECOM scare -- FW: Soldering lesson

2017-02-18 Thread Phil Kane
On 2/18/2017 2:14 PM, Ron D'Eau Claire wrote: > I never work around a car battery or other low-voltage, high current supply > wearing jewelry. If you wear a wedding ring that you cannot or do not want > to take off, do what hospitals do and wrap a band-aid around your finger > covering it.

Re: [Elecraft] ECOM scare -- FW: Soldering lesson

2017-02-18 Thread Rick WA6NHC
After pain, visual learning is often the best teacher. The rest of us sense wallet depletion. Don't forget that some of the battery packs we commonly use now (LiFePo4 is my example) are capable of tremendous current (mine are 'fused' by a BMS at 100 amps). Rick nhc On 2/18/2017 2:40 PM,

Re: [Elecraft] ECOM scare -- FW: Soldering lesson

2017-02-18 Thread Mel Farrer via Elecraft
From: Ron D'Eau Claire <r...@cobi.biz> To: elecraft@mailman.qth.net Sent: Saturday, February 18, 2017 2:14 PM Subject: Re: [Elecraft] ECOM scare -- FW: Soldering lesson I worked with a guy missing his ring finger after accidentally getting his wedding band across the high-current

Re: [Elecraft] ECOM scare -- FW: Soldering lesson

2017-02-18 Thread Ron D'Eau Claire
and wrap a band-aid around your finger covering it. 73, Ron AC7AC -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Frantz Sent: Saturday, February 18, 2017 9:20 AM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] ECOM scare -- FW

Re: [Elecraft] ECOM scare -- FW: Soldering lesson

2017-02-18 Thread Bill Frantz
Amen! I shorted my wedding ring and a wrench across a car battery once. It burned out a small part of the ring, and left a blister that lasted a week. I was lucky. I also got the ring off before the swelling made it impossible. I was doubly lucky. 73 Bill AE6JV On 2/17/17 at 5:16 PM,

Re: [Elecraft] ECOM scare -- FW: Soldering lesson

2017-02-17 Thread kev...@coho.net
I was at a Red Cross headquarters working ECOM when the room filled with bystanders. All of the power supplies were facing the operators while their exposed backs were next to the crowd. I noticed a lot of hand jewelry. I got the most important looking person's attention and mentioned how a