650-A: Difference between revisions
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==Links== | ==Links== | ||
* [https://archive.org/details/sim_general-radio-experimenter_april-may-1933_7_11-12 Robert F. Field, ''The Convenient Measurement of R, L, and C''. General Radio Experimenter, Vol. 7, Nos. 11 and 12, April-May, 1933]. | * [https://archive.org/details/sim_general-radio-experimenter_april-may-1933_7_11-12 Robert F. Field, ''The Convenient Measurement of R, L, and C''. General Radio Experimenter, Vol. 7, Nos. 11 and 12, April-May, 1933]. | ||
* [https://digital.sciencehistory.org/works/jm214p20f General Radio Type 650-A Impedance Bridge @ Science and History Institute Museum Digital Collection] | |||
<sup>1</sup>About $4,100 in 2023 dollars | <sup>1</sup>About $4,100 in 2023 dollars | ||
Revision as of 22:13, 24 April 2024
The General Radio 650-A is an impedance bridge introduced in 1933.
Frederick Van Veen writes:
The most noteworthy introduction of 1933 was the Type 650-A Impedance Bridge, the work of GR engineers Horton and Field.
Priced at $1751, the 650 was one of the most successful instruments in the Company’s history, remaining in the GR catalog for the next quarter century.
Links
- Robert F. Field, The Convenient Measurement of R, L, and C. General Radio Experimenter, Vol. 7, Nos. 11 and 12, April-May, 1933.
- General Radio Type 650-A Impedance Bridge @ Science and History Institute Museum Digital Collection
1About $4,100 in 2023 dollars