[sdiy] Burr Brown OPA2134PA DIP

[Dave]

To solder the soic to the adapter just take a fine tip soldering iron, and with  some fine gauge solder apply a dot on two opposite diagonal corner pads.  Place the soic above the pads and re-flow these two pads.   The soic is now held in place and properly aligned to all the pads.   Now one by one solder the other pads.   One good technique is to drag the iron across the leads while applying a tiny amount of solder to the tip.  With a little practice you can solder both sides of an soic in less than a minute.

If you get too much solder on some pads clean the iron tip and draw it across the pad.  This usually removes the excess solder without  using solder wick which will remove too much solder.

It's very easy and nothing to avoid.  No need for solder paste or an oven, or other special tools. 

-Dave

On May 11, 2026 3:06:48 PM PDT, brianw <brianw at audiobanshee.com> wrote:
>Admittedly, I'm spoiled by living in big cities where assembly services (like JLCPCB) are a short drive from home.
>
>I feel like I'm doing more than enough DIY by drawing up my own schematics and performing my own circuit board layout. I used to etch my own printed circuit boards until I got punched in the face by chlorine gas. Now, given that it's easy to create standard Gerber files for such things, I prefer to hire people to do the tasks like SMD soldering.
>
>I have no interest in buying a second-hand Toast-R-Oven and spending time hacking that to create my own SMT oven. I'd rather let someone who has professional gear and daily experience do this for me. Then I have more time to spend on circuit design and component selection.
>
>That said, I do have some basic rework tools, including Weller soldering tweezers, so I can swap components without a round trip to the assembly shop. I suppose that means placing one op-amp on a DIP adapter PCB would not be too much trouble.
>
>Brian
>
>
>On May 11, 2026, at 11:49 AM, Mike Bryant <mbryant at futurehorizons.com> wrote:
>> 
>> 	• I just use 3x reading glasses. Works well for me for 0805 at least.
>> 
>> I just use JLCPCB 😄
>> 
>> From: Synth-diy <synth-diy-bounces at synth-diy.org> on behalf of p. hendricks via Synth-diy <synth-diy at synth-diy.org>
>> Sent: 11 May 2026 18:20
>> To: synth-diy at synth-diy.org <synth-diy at synth-diy.org>
>> Subject: Re: [sdiy] Burr Brown OPA2134PA DIP
>>  
>> On 5/9/26 6:29 AM, Pete Hartman via Synth-diy wrote:
>> 
>> 
>> On Sat, May 9, 2026 at 7:00 AM rrsounds via Synth-diy <synth-diy at synth-diy.org> wrote:
>> I don’t think anyone does SMD soldering without some form (or, my case, forms) of magnification.
>> 
>> Well maybe I'm the exception?  I have not found a comfortable and usable form of magnification for the soldering itself.  Doing 0805 and soic I generally haven't had any trouble without, despite being very nearsighted all my life.  I do have a headset magnifier and a desktop USB microscope but they're for inspection not soldering.
>> 
>> I just use 3x reading glasses. Works well for me for 0805 at least.
>
>
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