At 02:47 AM 04/03/2010, you wrote:
>Marechiare wrote:
> >>> Yes, you are missing that you are not allowed to solder
> >>> perpendicular surfaces. A piece of wire could be bent to
> >>> make a surfaces parallel to PCB; component leads can't
> >>> (at least on the component's side).
> >>
> >> This is the first time I hear anything like this. "Not allowed",
> >> by whom?
> >
> > Are you really in EE-related business?
>
>No, I use it only as a cover for my cannabis farming business. But that's
>not important right now.
>
>
> > Ask those who repaired old
> > valve-based TV sets.
>
>Can anyone confirm what Marechiare is saying? I am almost certain that I
>have seen cheap, brown, production single sided boards that did not have
>plated holes populated with components whose leads are impossible to bend as
>MC suggests. May have been a VCR?

Single sided boards in consumer stuff almost never have the leads cinched.
Often they're hacked off with a carbide circular blade.

Cinching is like NASA practice or something. ;-)

Back in the early days of electronics, pre-PCBs even, it used to be felt that
solder joints should NEVER be used to support the (then rather heavy)
component, but obviously that rule of thumb is no longer followed (SMT
parts, for example, seldom have anything but the solder joints supporting
them).

Best regards,

Spehro Pefhany --"it's the network..."            "The Journey is the reward"
speff@interlog.com             Info for manufacturers: http://www.trexon.com
Embedded software/hardware/analog  Info for designers:  http://www.speff.com



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