[sdiy] [OT] LM13700 spotted in commercial product of big Manufacturer

[Quincas Moreira]

Me too Mike, but Dave actually etches home made PCBs!

On Tue 17 May 2022 at 13:59 Mike Bryant <mbryant at futurehorizons.com> wrote:

> I used to just solder thru hole PCBs from the top first - the solder
> leeches through happily enough.  It's only axial capacitors and some
> sockets that can't be done this way.
>
>
> -----Original Message-----
> From: Synth-diy [mailto:synth-diy-bounces at synth-diy.org] On Behalf Of
> David G Dixon via Synth-diy
> Sent: 17 May 2022 19:13
> To: 'mark verbos'; 'Roman Sowa'
> Cc: synth-diy at synth-diy.org
> Subject: Re: [sdiy] [OT] LM13700 spotted in commercial product of big
> Manufacturer
>
> Mark Verbos said:
>
> "I'm with Roman, I think building a big through hole board belongs in one
> of the circles of hell. All that flipping over and having parts fall out,
> clipping leads, burning my fingers as I try to get the parts tight to the
> board, etc."
>
> You are doing it wrong.  I never "flip the board over" -- I solder all
> parts that have equal height at the same time, and place them against a
> small piece of wood before setting the whole thing down.  It's all about
> order of
> operations:
>
> 1) jumper wires
> 2) diodes
> 3) resistors
> 4) IC sockets
> 5) ceramic caps
> 6) film caps
> 7) TO-92 packages
> 8) electrolytics
>
> If, in that rare circumstance, I need to flip the board over before all
> the joints are soldered, then I simply pick up the piece of wood and invert
> the board into my other hand -- nothing ever falls out.
>
> Also, if I do drop a part on the floor (a very common occurrence), then I
> can generally find it and pick it back up.  Not so with an SMD part -- once
> it hits the floor, it is in the Delta quadrant, sinking in Captain
> Janeway's coffee.
>
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-- 
[image: QMA]

Quincas Moreira
Director | QMA
mobile:  5534988825
site:  quincasmoreira.com
email:  quincas at gmail.com
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