MSF-driven real-time clock
Tài liệu tham khảo
1974, C-1
1978
Swabey, 1978, Time code clock
Cross, 1976, Time code receiver clock, Wireless World, 30
Cross, 1976, Time code receiver clock, Wireless World, 63
Cross, 1976, Time code receiver clock, Wireless World, 56
Helsby, 1976, Self-setting time code clock, Wireless World, 47
Helsby, 1976, Self-setting time code clock, Wireless World, 63
Helsby, 1976, Self-setting time code clock, Wireless World, 73