[sdiy] that LM13-something chip again...

Michael E Caloroso mec.forumreader at gmail.com
Wed Jun 9 13:20:21 CEST 2021


They were probably very prominent in home organs.  Likely displaced by
ASICs, which may explain their EOL.

MC

On 6/8/21, Paul Perry via Synth-diy <synth-diy at synth-diy.org> wrote:
>
> I've never seen the LM13700 in anything except music/audio -
> where are they all going??
> never found one in random e-waste scavageing,
> i have a lifetime supply, but that's more a reflection on my age...
>
> paul perry Melb Aust
>
>
> ------ Original Message ------
> From: "kenny at beatkamp.com" <kenny at beatkamp.com>
> To: "Mike Bryant" <mbryant at futurehorizons.com>
> Cc: "Synth-diy" <synth-diy at synth-diy.org>
> Sent: 8/06/2021 1:33:56 AM
> Subject: Re: [sdiy] that LM13-something chip again...
>
>>
>>
>>This is cozy information. Thank you.
>>
>>
>>>  That's always the problem with IC manufacture.  There's probably 10,000
>>> or
>>>  more of these on a wafer, and you usually make 25 wafers at a time.
>>> You
>>>  don't have to test and package them all at the same time as it's
>>> possible
>>>  to store processed wafers, but even if they just package 3 wafers
>>> there's
>>>  a sudden glut.
>>>
>>
>>
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