Phil Allison wrote:
The original single op-amp version was the TDA1034 by Philips, soon badged the NE5534 after they acquired Signetics in 1975. The NE5532 is a the dual version.
http://www.diyaudio.com/forums/solid...ns-5534-a.html
OTOH Bob Pease first started work at National Semiconductor in 1976, having left Teledyne Philbrick.
You're right! All these years I've been thinking of the 5532 as being
originally an NS design.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."