[sdiy] Help with noisy VCA

[Neil Johnson]

Tim,

Who did you ask?

Analog Devices stopped making SSM2164 years ago.  The only
manufacturer currently selling them is CoolAudio (part of
Behringer/Music-Group) in the guise of the V2164, which is available
in both PTH and SMT.....

Oooh wait, no, you're right .... bloody hell.... they only list the
DIP-16 package variant, which would be the V2164D.

Hmmm... I wonder why they stopped advertising the SMT version online?
Could it be just a slip-up?  Or are Behringer trying to kill off
Eurorack competition?  *ouch*

For small quantities you might find local distributors like Small Bear
and Cabin Tech have what you need.

Neil





On 31 August 2017 at 22:28, Tim Ressel <timr at circuitabbey.com> wrote:
> Their website shows PTH but not SMT. I've got an email in to tehm.
>
> --TImbo
>
>
>
> On 8/31/2017 2:26 PM, Mrs Paula Anne Maddox wrote:
>>
>> Tim,
>>
>> You can get any 2164s from cool audio.
>> As for the vca, I'd suggest the Gilbert multiplier based one, check
>> modulus ezine 5 (it's on the web) for a schematic. You don't need a 3046 as
>> long as you have two matches pairs, but you can get the 3046 in smt still.
>>
>> Paula
>>
>> On 31 August 2017, at 22:17, Tim Ressel <timr at circuitabbey.com> wrote:
>>
>> Hi,
>>
>> I am still having trouble with this VCA design:
>>
>> https://drive.google.com/open?id=0B2yaoNYlV1nMWFhSRWUwdlU3TzQ
>>
>> It is noisy, and it gets worse as you turn up the gain. I tried
>> switching to a 2164 design but its no longer available in SMT.
>>
>> Any ides?
>>
>
> --
> --Tim Ressel
> Circuit Abbey
> timr at circuitabbey.com
>
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