Date   : Fri, 05 Feb 2016 22:30:01 -0000
From   : faz@... (neil f)
Subject: Chip extractors - any recommendations?

Ebay items 172054536693 and 331768942788.
They both work. I prefer the second type, but they're so cheap it's worth
getting both and deciding for yourself.
-Neil F.

> -----Original Message-----
> From: bbc-micro-bounces+faz=nildram.co.uk@... [mailto:bbc-
> micro-bounces+faz=nildram.co.uk@...] On Behalf Of John
> Sent: 05 February 2016 22:22
> To: 'J.G.Harston'; bbc-micro@...
> Subject: Re: [BBC-Micro] Chip extractors - any recommendations?
> 
> - I'll take that as a 'no' then, JG...
> 
> Is that it - is there nothing out there for less than a tenner to take out
> chips than screwdrivers and brackets? Thought things would have moved on
> in
> 20 odd years...
> 
> I do have a spare PCI card bracket as it happens.
> 
> JT
> 
> -----Original Message-----
> From: bbc-micro-bounces+blip=blipit.com@...
> [mailto:bbc-micro-bounces+blip=blipit.com@...] On Behalf Of
> J.G.Harston
> Sent: Thursday, February 4, 2016 10:36 PM
> To: bbc-micro@...
> Subject: Re: [BBC-Micro] Chip extractors - any recommendations?
> 
> Blip wrote:
> > As part of the OU project I've already talked about, I wonder if
> > anyone has any recommendations around what to use for chip extraction?
> > I was looking at this one:
> > http://www.amazon.co.uk/quality-Integrated-Circuit-Extractor-engineer/
> > dp/B000TGLSVK/ref=sr_1_1?ie=UTF8&qid=1454621800&sr=8-1&keywords=chip+e
> > xtractor+-dust
> 
> No no no no! :( You need something where you control the extraction.
> With something like that the grip of the socket on the IC pins drops
> suddenly, faster than you can react and stop pulling, resulting in crushed
> pins. You need a method where as the friction drops to zero the movement
> also drops to zero. A lever.
> 
> What I use is an old PC expansion slot blanking plate with a bit cut off
> so
> it fits under an IC, this here:
> http://pics.mdfs.net/2016/02/160201.htm
> 
> It's a L-shaped strip of metal, about three inches long, half an inch
> wide,
> with the foot of the 'L' about 1/4 of an inch long. As you lever up the IC
> when the friction drops to zero the IC moves no further than where you
> have
> levered it to. It is impossible for you to lose control.
> It's an L-shaped equivalent of putting a screwdriver under the edge of an
> IC
> and rotating the screwdriver. The friction is soley holding the IC in, it
> is
> not controlling the force you are applying.
> 
> (rant)
> It puzzles me how these things sold as "IC extractors" continue to exist
> when they patently do more damage than their purported function and how
> people fail to notice that they don't function. I lost count of the number
> of destroyed EPROMs my colleagues produced using the "yank and pray"
> method.
> 
> It's because people see them sold as "IC extractors" so assume that they
> function as IC extractors. So, there must be something wrong with how they
> use them, it never occurs to them that what is purported to be reality
> isn't. Like how people believe you give birth inside a tent because that's
> what they see in TV shows and films, rather than that's what they show in
> TV
> shows and films because that's what the regulators allow to be shown, not
> what actually happens in reality.
> (/rant)
> 
> --
> J.G.Harston - jgh@... - mdfs.net/jgh
> 
> 
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