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Re: Mic capsules question: rapid 35-0190 vs Panasonic WM-61A

Subject: Re: Mic capsules question: rapid 35-0190 vs Panasonic WM-61A
From: "Max" oatcruncher
Date: Thu Jul 18, 2013 3:49 am ((PDT))
Hi all,
Can I add a couple of extras to what David has posted below. He makes no me=
ntion of solder type, and some are better than others for our uses. I recom=
mend getting hold of some Eutectic solder. It was recommended to me, a few =
years back, by a top flight USAF electronics man, and having tried it, I'd =
never use anything else again. With this you need to use specifically a Ros=
in flux; the most convenient form is the pen type. These have a hard fibre =
tip, which you push down to release the liquid. This pen type dispenser is =
just my personal preference. I notice Stu that you're in the UK like myself=
, and if you don't have suppliers on the corner, you can get both of these =
items off eBay. Here's a link to a cut length of solder:

http://www.ebay.co.uk/itm/Cardas-Quad-Eutectic-Solder-3-5M-for-hi-fi-cable-=
wire-/300925719158?pt=3DTurntable_Parts_Accessories&hash=3Ditem4610921276

Cheers
Max



--- In   wrote:
>
> > i have to be realistic, with no soldering experience and at =C2=A310 pe=
r capsule it could end up being quite expensive if i make a mistake.
>
> stu,
>
> To save you looking in the archives for soldering info, here is roughly w=
hat
> I posted:
>
> Most small devices are rated at 1 second soldering time and you can usual=
ly
> do it shorter than that. If it doesn't go right' let it cool, desolder, c=
ool
> and try again.
>
> Do not depend on the flux in solder wire - use extra flux. I use
> electrician's flux. This is the most important advice I have.
>
> Pre-tin the connecting wire - again using surplus flux.
>
> The soldering iron should be just hot enough to melt solder cleanly. If
> using an iron without a temperature control, rest the tip on a block or
> sheet of metal to stop it overheating. Wet the iron tip with flux and
> solder.
>
> Keep the job neat with insulation nearly up to the join. You can encapsul=
ate
> the join in silicone rubber and also mount small devices like capsules us=
ing
> silicone.
>
> > i know both will produce hiss / self noise but just how different are t=
hese capsules in real world
>
> Cheap devices are hissy - that's show biz - and you need to add zeroes to=

> the price to get low noise, but hiss can be minimised.
>
> I've got an experimental rig:
> www.stowford.org/sounds/brinibox.htm
> This is as crude as you like but gives a gain of about 12dB, ie. less his=
s,
> and a good stereo image. A test is on:
> http://www.stowford.org/recordings.htm#stereotest
>
> David Brinicombe
>








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