[Elecraft] Resistor and capacitor installation

: "Charlie T" To: Subject: Re: [Elecraft] Resistor and capacitor installation techniques: trimbefore or after soldering? Message-ID: <005201d3c483$d1f87fc0$75e97f40$@erols.com> Content-Type: text/plain; charset="utf-8" I only use "non-GMO enhanced&quo

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

n.qth.net > [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mark Goldberg > Sent: Sunday, March 25, 2018 6:20 PM > To: Elecraft Mailing List > Subject: Re: [Elecraft] Resistor and capacitor installation techniques: > trim > before or after soldering? > > For commercial products, ther

Re: [Elecraft] Resistor and capacitor installation

If Günter Grass and Thomas Pynchon had worked together the boy in The Tin Drum could have been a V2 pilot.    73,   Kevin.  KD5ONS On 03/26/2018 11:46 AM, a45wg wrote: So you are all “Rocket Scientists” !! That explains a lot…. Keep up the V interesting posts 73s

Re: [Elecraft] Resistor and capacitor installation

So you are all “Rocket Scientists” !! That explains a lot…. Keep up the V interesting posts 73s Tim Du3/M0FGC > On Mar 26, 2018, at 10:04 PM, Tom Doligalski wrote: > > https://www.techbriefs.com > > 73, Tom W4KX > >

Re: [Elecraft] Resistor and capacitor installation

https://www.techbriefs.com 73, Tom W4KX Sent from my iPad > On Mar 26, 2018, at 1:24 PM, n0...@juno.com wrote: > > Back in the early 80's, a friend of mine had a job-related > subscription to "NASA Tech Briefs" (or something like that title). > I never read the article myself, but my friend was

[Elecraft] Resistor and capacitor installation

Back in the early 80's, a friend of mine had a job-related subscription to "NASA Tech Briefs" (or something like that title). I never read the article myself, but my friend was very good at relaying details. One of the subjects covered was soldering and the "shock wave" problem. IIRC, the leads co

Re: [Elecraft] Resistor and capacitor installation

I had to take a two-week NASA soldering school when I began work at Goldstone Tracking Facility in the Mojave Desert in 1971. Components were all thru-hole back then. A lot of years have passed since them but as I recall we bent the leads after insertion, soldered, and trimmed flush. I forgo

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

Mark, Does IPC-610 also cover automotive products? N2TK, Tony -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Mark Goldberg Sent: Sunday, March 25, 2018 6:20 PM To: Elecraft Mailing List Subject: Re: [Elecraft] Resistor and

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

For commercial products, there is IPC-610. That is 400+ pages of descriptions of how to determine acceptability of and build electronic assemblies. It has very clear explanations and lots of pictures and diagrams of right and wrong ways to do things. Unfortunately, you may have to pay to get a co

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

I only use "non-GMO enhanced" solder that is free-ranged. Also, only natural lead & pure tin mined by hand without polluting equipment is used with rosin (flux) from contented pine trees that have at least one wild endangered species bird nest in it. 73, Charlie k3ICH __

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

Sent: Sunday, March 25, 2018 4:35 PM To: Bill Johnson Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering? I do also carefully reflow.. Don't what any popping loose. Usually with a finger on the part. Wrist

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

25, 2018 4:08 PM To: hawley, charles j jr Cc: elecraft@mailman.qth.net; JEROME SODUS Subject: Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering? And trimming before soldering allows the exposed copper “end” of the lead to be coated with solder thus elimi

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

ROME SODUS Subject: Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering? And trimming before soldering allows the exposed copper “end” of the lead to be coated with solder thus eliminating corrosion to the bare copper. Sent from my iPhone ...nr4c.

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

> So, tin the wires if needed; position the part and then trim wires before > doing the final soldering. > > 73 Jerry KM3K > > > > Message: 15 > Date: Sat, 24 Mar 2018 19:39:47 +0000 > From: Bill Johnson > To: "ksto...@ac0h.net" , 'Mark Petrovic

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

iscussion! '73 de JIM N2ZZ -Original Message- From: N2TK, Tony [mailto:tony@verizon.net] Sent: Sunday, March 25, 2018 12:58 PM To: 'Doug Renwick'; 'James F. Boehner MD'; 'JEROME SODUS'; Elecraft@mailman.qth.net Subject: RE: [Elecraft] Resistor and capacitor in

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

I've soldered a LOT of components to circuit boards and I've always cut the leads prior to soldering. I insert the component and flip the board over to see which direction the runs go from the lead.  I bend the lead in the direction of the run, which serves the purpose of holding the compone

[Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

great discussion! '73 de JIM N2ZZ -Original Message- From: N2TK, Tony [mailto:tony@verizon.net] Sent: Sunday, March 25, 2018 12:58 PM To: 'Doug Renwick'; 'James F. Boehner MD'; 'JEROME SODUS'; Elecraft@mailman.qth.net Subject: RE: [Elecraft] Resistor and

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

an.qth.net Subject: Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering? About Message#15 copied below Sorry but cutting wires after soldering is "bad practice"; NASA wanted the soldered connection left undisturbed. If I ever saw an assemble

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

: Sunday, March 25, 2018 12:05 PM To: 'James F. Boehner MD' ; 'JEROME SODUS' ; Elecraft@mailman.qth.net Subject: Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering? Heathkit recommended the "bad practice" saying "solder th

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of JEROME SODUS Sent: Saturday, March 24, 2018 11:40 PM To: elecraft@mailman.qth.net Subject: Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering? About Message#

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

I guess if you're building something that goes into a spacecraft or is life support equipment, you want to do everything you can to make the product as reliable as possible. In most cases, ham gear, especially hand assembled ham gear, doesn't fall into that category. Mass produced through-hole

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

I agree, the stated NASA "method" does amaze me. First, the K2 is not likely to go a space journey. Components with pre-cut leads may require 3 hands. One to hold the component, one to hold the soldering iron and another to hold the solder. I would assume that NASA directive was for wave-solder

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

si Ali -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of James F. Boehner MD via Elecraft Sent: March-25-18 9:33 AM To: 'JEROME SODUS'; elecraft@mailman.qth.net Subject: [Elecraft] Resistor and capacitor installation t

[Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

5 Date: Sat, 24 Mar 2018 19:39:47 + From: Bill Johnson To: "ksto...@ac0h.net" , 'Mark Petrovic' , "Elecraft@mailman.qth.net" Subject: Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering? Message-ID: Content-Type: text/p

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

quot;ksto...@ac0h.net" , 'Mark Petrovic' , "Elecraft@mailman.qth.net" Subject: Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering? Message-ID: Content-Type: text/plain; charset="us-ascii" Follow the instructions and solder

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

Actually one of the important points in soldering with thru-hole components with plated hole boards is to watch the solder flow as you solder. You should see the solder wick down into the hole which minimizes the chances that the lead trimming process will cause a 'shock wave' that will fractu

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

When I went to “mil spec soldering school” at Sanders Associates in Nashua NH back in the 80’s we were taught to install the component and mechanically secure it BEFORE soldering. This included clipping the leads of resistors, capacitors, and so forth. Why? When you clip a component lead it creates

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

Mark, It is usual for most components to mount on the top side of the board and solder from the bottom. Splay the leads slightly to keep the components from falling out when you turn the board over. For components mounted on the bottom side of the board, I normally put them in the same way,

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

qth.net Subject: Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering? If I remember correctly they got soldered from the top side. -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Mark Petrovic Sent: Saturday, March 24, 2018 12

Re: [Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

If I remember correctly they got soldered from the top side. -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Mark Petrovic Sent: Saturday, March 24, 2018 12:28 PM To: Elecraft@mailman.qth.net Subject: [Elecraft] Resistor and capacitor installation techniques: trim

[Elecraft] Resistor and capacitor installation techniques: trim before or after soldering?

While reading through my new K2 kit's control board assembly instructions, I see that some builders prefer to trim the resistor and capacitor leads before soldering. I'm intrigued by this, and wonder if someone who uses this technique can share their experiences. Do you the solder the component fr