Electrically maintained tuning fork, frequency sta

maker:
Muirhead and Company Limited

Electrically maintained tuning fork, frequency standard used for synchronous working on picture standard facsimile machines

Details

Category:
Telecommunications
Object Number:
1989-1028
type:
standards frequencies, phonic motors, frequencies, phonic motors, standards
credit:
Muirhead Vactric Components Limited
status:
Permanent collection

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