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Chronology of call letters WBZ
- Date: September 19, 1921-June 30, 1928...
- Frequency:
- Frequency:
- 833 khz (September 19, 1921-May 15, 1923)
- 890 khz (May 15, 1923-June 30, 1924...)
- 900 khz (...June 30, 1925-June 30, 1928...)
- Location:
- Springfield, Massachusetts (September 19, 1921-March 13, 1931)
- Boston, Massachusetts (March 13, 1931...) (interchanged facility with WBZA, co-owned)
- Owner of license:
- Westinghouse Electric & Manufacturing Co. (September 19, 1921-June 30, 1928...)