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

Brian Willoughby brianw at audiobanshee.com
Sun May 15 00:44:40 CEST 2022

The writing is on the wall for DIP. Eventually, all DIP packages will be discontinued. There's nothing particular about the LM13700 in that respect.

Choosing to design a product now by focusing on DIP packaging seems like a very poor business decision, particularly in contrast to selecting parts based on their capabilities. I'm ignoring hobby electronics.

There have actually been products that were notorious for failing because the DIP packages are not soldered in place. SMD does not have that problem (although BGA does have its own issues in the presence of several heat-cycling).


On May 14, 2022, at 07:54, Tom Wiltshire <tom at electricdruid.net> wrote:
> Because, in DIP form at least, the device has been discontinued. The SMD part will probably stick around, but it's not exactly going to ever be a major seller.
> On 14 May 2022, at 15:13, Quincas Moreira via Synth-diy <synth-diy at synth-diy.org> wrote:
>> I don’t understand… why would the LM13700 not be a wise choice? It’s an excellent OTA used in numerous applications!
>> On Sat 14 May 2022 at 8:54 Steve via Synth-diy <synth-diy at synth-diy.org> wrote:
>>> Howdy,
>>> the bassguitar amplifer "Rumble 40" by none less than Fender,
>>> has, in area D..C / 6..7  on page 1, and others, a LM13700.
>>> Is that just a not-wise choice, or do they know it won't be buried in
>>> the ancient parts graveyard for a while?
>>> Scroll a bit down, to the left, there's a captcha field, after getting
>>> through it, one can download.
>>> https://elektrotanya.com/fender_rumble_40_v3_sch.pdf/download.html
>>> - Steve

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