Mitsubishi M5201 RESTORED condition Dual Opamp general purpose, integrated swich. Widely used in Marshall amps, series Valvestate I, JCM900, JCM2000 etc.
NOTE: This is a recycled chip, pulled from an old board. It is a used chip, it is cleaned and tested for use to give it a new life. The M5201 chips are very rare to find in NOS or NEW condition, so if you want a new replacement yo can try the following chips:
NJM2120D / JRC2120D
NJM2121D / JRC2121D