1973 8c Progress in Electronics: Transistors and Printed Circuit
# 1501 FDC - 1973 8c Progress in Electronics: Transistors and Printed Circuit
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1501 FDC - 1973 8c Progress in Electronics: Transistors and Printed Circuit
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Fleetwood First Day Cover (Plate Block)
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First Day Cover Plate Block
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U.S. #1501
8¢ Transistors and Printed Circuit Board
Electronics Progress Issue
Electronics Progress Issue
Issue Date: July 10, 1973
City: New York, NY
Quantity: 159,775,000
Printed By: Bureau of Engraving and Printing
Printing Method: Lithographed, engraved
Perforations: 11
Color: Tan and multicolored
Another salute to electronic progress, this issue commemorates the invention of the transistor by Bell Telephone Laboratories in 1948. The transistor made miniaturization possible and opened the door for production of pocket radios and computer parts.
U.S. #1501
8¢ Transistors and Printed Circuit Board
Electronics Progress Issue
Electronics Progress Issue
Issue Date: July 10, 1973
City: New York, NY
Quantity: 159,775,000
Printed By: Bureau of Engraving and Printing
Printing Method: Lithographed, engraved
Perforations: 11
Color: Tan and multicolored
Another salute to electronic progress, this issue commemorates the invention of the transistor by Bell Telephone Laboratories in 1948. The transistor made miniaturization possible and opened the door for production of pocket radios and computer parts.