[sdiy] Discrete Op Amps

[Michael E Caloroso]

Not much point in discrete opamps these days, unless you're nostalgic
about the Philbrick K2-W - it even uses a pair of 12AX7 dual triodes
for "warm tube sound".

MC

On 4/10/17, Elain Klopke <functionofform at gmail.com> wrote:
> There's five examples on this page...
>
> https://www.diyrecordingequipment.com/collections/parts
>
> for example: "The ML2520 is the result of many hours of critical listening
> tests and has been relentlessly refined throughout this process. It is
> Whistle Rock Audio's take on the famous AP2520 discrete opamp, popular
> amongst DIY enthusiasts and tweak-head audio engineers. It is a vital part
> of what makes the classic American console sound. The ML2520 will make your
> recordings shine with creamy highs, punchy mids and smooth bass."
>
> On Sun, Apr 9, 2017 at 8:40 PM, Mike HEQX <mike at heqx.com> wrote:
>
>> What's the point of a discrete op amp these days? If you want color you
>> can get that a thousand different ways. Isn't the point of op amps the
>> "operation" aspect anyway? The flavor is a byproduct of the limitations
>> of
>> the fabrication process and the design limitations imposed by those. I
>> don't know of anyone hawking the sound characteristics of a discrete op
>> amp, yet I am sure they are out there.
>>
>> I have some discrete op amps used in ancient naval computers. Never tried
>> to fire them up.
>>
>> Mike
>>
>>
>>
>> On 4/9/2017 7:42 AM, Michael Zacherl wrote:
>>
>>> On 9.Apr 2017, at 11:27 , Michael Zacherl <sdiy-mz01 at blauwurf.info>
>>> wrote:
>>>
>>> On 8.Apr 2017, at 13:27 , Gordonjcp <gordonjcp at gjcp.net> wrote:
>>>>
>>>> Under all possible circumstances - even preamps for the golden-eared
>>>>> audiophools - discrete opamps will be outperformed in every respect by
>>>>> even
>>>>> the cheapest shittiest IC.
>>>>>
>>>> µA741 ?  ;)
>>>>
>>> BTW, IIRC, this has been passed around a good while ago:
>>> http://shop.evilmadscientist.com/productsmenu/762
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>