[sdiy] 4046 in VCOs (was Hi frequency VC clock)

[Mike HEQX]

Interesting that you mention a Fairchild part, I have a few each of many 
of their op amps etc. I guess I'll make one-off devices with them and 
sell them as " vintage" haha .


On 6/23/2017 3:16 PM, Tim Ressel wrote:
> Color me excited!  You can still get the LM331!  Its the Fairchild 
> clone called the KA331. Mouser has it in stock for $0.56! Why didn't 
> anyone tell me?
>
> --tim (ordering now) ressel
>
>
> On 6/21/2017 5:10 AM, Matthias Herrmann wrote:
>> Thank you for the link, and this is exactly what I am talking about.
>> For the 4046 VCO Thomas Henry did NOT use the TI part, but the 
>> Motorolla, so you may want to change that.
>> And fun fact is that the 446s with 1% linearity worked well, hoever, 
>> the 4046s with .5% or less did not.
>> http://www.birthofasynth.com/Thomas_Henry/Pages/X-4046.html
>>
>>
>>
>>> -----Original Message-----
>>> From: Neil Johnson [mailto:neil.johnson71 at gmail.com]
>>> Sent: Wednesday, June 21, 2017 1:16 PM
>>> To: Matthias Herrmann <Matthias.Herrmann at jeppesen.com>
>>> Cc: synth-diy at synth-diy.org
>>> Subject: Re: [sdiy] 4046 in VCOs (was Hi frequency VC clock)
>>>
>>> Hi,
>>>
>>> Matthias Herrmann wrote:
>>>> Haha, yes!
>>>> The 4046 was not intended to be used as an audio VCO. And this was
>>> reason enough for Thomas Henry to actually try and do it, I guess. I 
>>> did other
>>> weird fun stuff as well.
>>>
>>> https://urldefense.proofpoint.com/v2/url?u=http-
>>> 3A__www.milton.arachsys.com_nj71_index.php-3Fmenu-3D2-26submenu-
>>> 3D2-26subsubmenu-
>>> 3D9&d=DwIBaQ&c=P3aKjizb3qsxp0SERaL2sw&r=Wo0ERRj3NwEx1MVmRi7Tj
>>> 3kJss6CkyI0BMe1OujCfok&m=m98owWkJGXxMW52G24d4bI_Q-
>>> Xo1pqLxO_dMtXF5ZQw&s=bPXhF9X3OYFgdurqYYibQAJHtRbiRw1n5K89ru81S
>>> _E&e=
>>>
>>> Neil
>>> -- 
>>> https://urldefense.proofpoint.com/v2/url?u=http-
>>> 3A__www.njohnson.co.uk&d=DwIBaQ&c=P3aKjizb3qsxp0SERaL2sw&r=Wo0
>>> ERRj3NwEx1MVmRi7Tj3kJss6CkyI0BMe1OujCfok&m=m98owWkJGXxMW52
>>> G24d4bI_Q-
>>> Xo1pqLxO_dMtXF5ZQw&s=vVDjr1EN_4HYTlKUL8brz9eWlSwaijCzLE9Ps_Of9b
>>> I&e=
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>