Arizona (until 1955) 33 400 -12
Artist 78 RIAA -16
Atlantic 33 RIAA -16
Audiophile 33 RIAA -12
78 400 FLAT
Autograph (Marsh Electrical) 78 1000 FLAT
Audio Fidelity (901 - 903) 33 RIAA -16
Bach Guild (501 - 529) 33 LP -16
Bach Guild – alternate 33 RIAA -16
Balkan 78 RIAA -5
Banner (up to 10002) 33 LP -16
Bartok 33 LP -16
(301 - 307, 309, 906 - 920) 33 629 -16
Berliner 71.29 300 FLAT
BBC Transcriptions (1930 - 1949) (<50000) ALL 300 FLAT
(1949 - 1953) (>70000) ALL 300 -9
(“P” matrix) (1954 - 1956) 33 400 -10
(“R” matrix) (<1961) (<105403 LP cut) 33 1000 FLAT
Bluebird ALL See RCA-Victor
Blue Note 33 400 -12
Blumlein (HMV) 78 250 FLAT
Boston (up to B202) 33 LP -16
Boston – alternate 33 RIAA -16
Brunswick (1925) 78 300 FLAT
(1946 - 1954) 78 629 -12
(up to MG4400) (with raised matrix) 33 800 -8
Brunswick – alternate 78 RIAA FLAT
BSI 78 300/400 -11
Caedmon 33 629 -12
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