Is there any interest on the following collection of the "Lenkurt Demodulator"?
Lenkurt Demodulator
1961 August thru November only1962 All ok
1963 Missing April, December1964 All ok
1965 Missing November1966 All ok
1967 All ok1968 Missing September
1969 All ok1970 All ok
1971 All ok1972 Missing May
1973 Missing June1974 All ok
1975 Missing November, December1976 January and February only