This chip was used in the VCS3/AKS as a reverb amplifier. It was replaced with a 741 and NPN-PNP (AC176K-AC153K) ouput pair in later versions of the A board. Rev H and above. Tony -- Internal Virus Database is out-of-date. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 267.6.9 - Release Date: 6/11/2005