[sdiy] op amp substitutes

[Jay Schwichtenberg]

Jay,

>From the NJM2068 data sheet (www.njr.com):

The NJM2068 is a high performance, low noise dual
operational amplifier. This amplifier features popular pin-out,
superior noise performance, and superior total harmonic
distortion. This amplifier also features guaranteed noise
performance with substantially higher gain-bandwidth product
and slew rate, which far exceeds that of the 4558 type amplifier.
The specially designed low noise input transistors allow the
NJM2068 to be used in very low noise signal processing
applications such as audio preamplifiers and servo error
amplifier.

You'll find them in a lot of low and mid-line mixers along with a lot of
other audio gear. I was told that Mackie uses them but I haven't opened up a
Mackie mixer and checked it out. At another job we used them in sound cards.
I use them where bipolar op-amps are called for in audio.

Jay S.

> -----Original Message-----
> From: owner-synth-diy at dropmix.xs4all.nl
> [mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Jay
> Sent: Thursday, January 20, 2005 5:58 PM
> To: jays at aracnet.com
> Cc: synth-diy at dropmix.xs4all.nl
> Subject: Re: [sdiy] op amp substitutes
>
>
> > Might look at NJM2068s.
>
> I've got a tube sitting here from whoever has that yellow-paged catalog.
>
> So, what is their best application?
>