opamp substitution question

[Ric Miller]

> From: John P <johnp at wwa.com>
> To: synth-diy at horus.sara.nl
> Subject: Re: opamp substitution question
> Date: Tuesday, May 27, 1997 3:20 PM
> 
> Synthfool at aol.com wrote:
> > 
> > Anybody know a substitute for the N5556V?
> > I'm assuming it is an opamp, but can find little data.
> 
> Er, could that be a timer chip?  555 variant?
> - John P

Nope.  The 556 was indeed an opamp in the mid 1970s.  It was slightly better
quality than the 307 and 741.  Offhand, I can't for sure remember whether it
was a single or a dual.

Ric