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MANUFACTURER
=================================================================================================
Mercury*
Mercury
MGM (up to E3071)#
MGM*
MGM
Montilla
Musicraft
NAB/NARTB transcriptions
NAB/NARTB vertical transcriptions
New Records
Nocturne (LP 1-3, 5, XP 1-10)
Oceanic (up to XTV20386)
Odeon
Odeon(some early electrical)
Odeon(pre-1947)
Okeh(electrical)
Orthoacoustic transcriptions
Overtone (1-3) (up to XTV20386)
Oxford
Pacific Jazz (1-13)
Parlophone
1947-1954
pre-1947
1947-1954
Period (up to 576)#
Philharmonia
Polydor
Polydor
Polymusic
Polymusic(binaural-inside band)
Rachmaninoff Society
RCA-Victor
Early Acoustics*
Later Acoustics*
1925
1931(Program Transcription)
1935
1938-1954
1954 (New Ortho only)
1930-50 (European)
1949 (D9 to EOLRC3980)#
1950-8/52 (>E0LRC3981)#
8/52(New Orthophonic)(>E2RP4094)
Remington (up to 199-135)#
SPEED
BASS (TURNOVER)
45
78
33
45
78
33
78
33/78
33/78
33
33
33
33
78
78
78
33/78
33
33
33
33
78
78
33
33
33
78
33
33
33
71.29
76.59-78
78
33
78
300/RIAA
78
78
78
33/45
33/45
33/45
33
Page #8
TREBLE (ROLLOFF)
400
400
RIAA
RIAA
RIAA
RIAA
700
RIAA
400
Lp
400
Lp
300
700
300
300
RIAA
Lp
Lp
400
300
300
300
RIAA
400
300
300
RIAA
RIAA
Lp
FLAT
FLAT
300
700
RIAA
RIAA
300
700
RIAA
RIAA
RIAA
-12
-12
-12
-12
-12
-12
RIAA
NAB
NAB
NAB
-12
NAB
-10
FLAT
FLAT
FLAT
NAB
NAB
NAB
-12
-10
FLAT
-10
NAB
-12
-10
-10
NAB
FLAT
NAB
FLAT
FLAT
FLAT
FLAT
-5
-5
RIAA
FLAT
-10
-12
RIAA
NAB
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