[sdiy] soldering bananas

[elmacaco]

I asked Bruce at modcan what jacks he uses before building my SBM,  he said
johnson.  I've used about 200 of these, no problem soldering ever.

f*** pomona, they are expensive and don't feel as good as my johnson jacks
or plugs.

Ed
----- Original Message -----
From: "Buck Buchanan" <voltagecontrolled at cox.net>
To: "Rude 66" <r.lekx at chello.nl>; <synth-diy at dropmix.xs4all.nl>
Sent: Thursday, April 10, 2003 11:06 PM
Subject: Re: [sdiy] soldering bananas


> At 11:49 AM 4/9/03 +0200, Rude 66 wrote:
>
> >working on my new synth, i came across this weird problem. i'm having a
> >hell of a time soldering my banana inputs. it just seems the solder won't
> >stick to it, sometimes i can pull the wire right off. i'vew used
> >differenmt types of solder, with and without s-39, cleaned the things
with
> >96% proof alcohol first to remive any grease, etc.
> >i'm a little baffled, i've soldered jacks and all kinds of other stuff
for
> >20 plus years and have never had this happen. any ideas from you people
> >who work a lot with bananas?
>
>
> I had the EXACT problems on a couple random batches of Pamona brand Banana
> jacks (which I'd always thought were the best).  Most wetted beautifully,
> but one batch in particular was hell.  I tried everything!
>
> A miniature ("jewelers") triangle file is now always handy and takes
> plating off in moments once you've done a few.  On the Pamonas at least,
> it's copper down there, and with a little of the gooey brown flux, solder
> flows perfectly.  Once it's filed, I don't think the flux is really
necessary.
>
> Before assembling a module, I always hit each jack with the iron really
> quick to see which ones need filing.  On the Pamonas, it seems like solder
> flows perfectly, or not at all - with none in between.
>
> Common Pamona, get on the quality control!  We shouldn't have to do this.
>
> Good luck!
>
> Buck
>


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