Relay Removal ?

[Steve Kavanagh]

OK, while everyone seems to be on the subject of
stupidity...I just found I installed two of Elecraft's
ubiquitous latching relays incorrectly (after several
checks to make sure it was done right !).

Has anyone ever successfully unsoldered one without
serious damage to either the relay or the board ? If
so what technique did you use ?

73,
Steve VE3SMA


       

       
               
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[Allan Bacon-3]

If you can get a desoldering tool with heated pencil and desolder vacuum built-in
go for it. I got a Hako 808 and removed many remove components from
boards without damaging components or boards on any PCB's. Double-sided,
singles and multi-layer.
73,
KI4HRN

----- Original Message ----
From: Steve Kavanagh <[hidden email]>
To: [hidden email]
Sent: Wednesday, January 04, 2006 2:17:27 PM
Subject: [Elecraft] Relay Removal ?


OK, while everyone seems to be on the subject of
stupidity...I just found I installed two of Elecraft's
ubiquitous latching relays incorrectly (after several
checks to make sure it was done right !).

Has anyone ever successfully unsoldered one without
serious damage to either the relay or the board ? If
so what technique did you use ?

73,
Steve VE3SMA


   
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[EricJ-2]

I mounted an entire row in my K1 ATU backwards after checking it at least
once.

It was easier and safer to just crush them with sidecutters, remove the pins
with desoldering braid and replace the relays with knew ones. I found them
locally, but you can get them from Elecraft, Mouser or Digikey as well. They
aren't very special and they are inexpensive.

Unless you have one of those fancy desolderers they talk about here (I
don't), it is risky and very tedious trying to do it with desoldering braid.
I figured if I couldn't handle soldering them in correctly in the first
place, what would make me think I could desolder them correctly after the
fact.

Eric
KE6US
www.ke6us.com

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Steve Kavanagh
Sent: Wednesday, January 04, 2006 11:17 AM
To: [hidden email]
Subject: [Elecraft] Relay Removal ?

OK, while everyone seems to be on the subject of stupidity...I just found I
installed two of Elecraft's ubiquitous latching relays incorrectly (after
several checks to make sure it was done right !).

Has anyone ever successfully unsoldered one without serious damage to either
the relay or the board ? If so what technique did you use ?

73,
Steve VE3SMA


       

       
               
__________________________________________________________
Find your next car at http://autos.yahoo.ca
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[Don Wilhelm-3]

Steve,

If you have a Hakko 808 or similar quality desoldering tool, you might try
removing them, but if not, I strongly suggest that you order new relays and
cut the cases on the existing ones so you can remove the pins one at a time
and clean up with solder wick. The board with the other mounted components
is more valuable than the relays - remember that when you are working, we
hams have a tendency to salvage everything possible, but resist that
temptation.

73,
Don W3FPR

> -----Original Message-----
>
> OK, while everyone seems to be on the subject of
> stupidity...I just found I installed two of Elecraft's
> ubiquitous latching relays incorrectly (after several
> checks to make sure it was done right !).
>
> Has anyone ever successfully unsoldered one without
> serious damage to either the relay or the board ? If
> so what technique did you use ?
>
> 73,
> Steve VE3SMA
>

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[Ian Stirling, G4ICV, AB2GR]

On Wednesday 04 January 2006 20:05, Allan Bacon wrote:
> If you can get a desoldering tool with heated pencil and desolder vacuum built-in
> go for it. I got a Hako 808 and removed many remove components from
> boards without damaging components or boards on any PCB's. Double-sided,
> singles and multi-layer.

  I have used the spring loaded sucking plunger
type that's used with a soldering iron to
remove ICs and components.  I have one from
RS Components (when I lived in England) and one
from Radio Shack.
  The method is to remove the solder and then
'crack' the leads from the board, to free them
from the residual solder, with a small
screwdriver or such tool.  Even 40 pin ICs
succumb undamaged to this.

Ian, G4ICV, AB2GR, K2 #4962
--
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