PIONEER : Date Codes    
To determine the birthdate of a component, use the first two letters of the serial number
and the tables below.  Almost all Pioneer components can be dated using these tables.
First Letter Year Year Second Letter Month  
A 1954 1980 A JAN 1
B 1955 1981 B FEB 2
C 1956 1982 C MAR 3
D 1957 1983 D APR 4
E 1958 1984 E MAY 5
F 1959 1985 F JUN 6
G 1960 1986 G JUL 7
H 1961 1987 H AUG 8
I 1962 1988 I SEP 9
J 1963 1989 J OCT 10
K 1964 1990 K NOV 11
L 1965 1991 L DEC 12
M 1966 1992
N 1967 1993
O 1968 1994
P 1969 1995
Q 1970 1996
R 1971 1997
S 1972 1998
T 1973 1999
U 1974 2000
V 1975 2001
W 1976 2002
X 1977 2003
Y 1978 2004
Z 1979 2005
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