EQ CURVES OF OLD RECORDS

Here are the major recording labels and the curves they used before 1964:

Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
Aeolian	All, to 1919	80.00	Vertical	3-mil	Acoustic	800N-16
Allegro	1948-1956	33.33	Lateral	1-mil	LP	500C-16
Allied	to 1958	33.33	Lateral	1-mil	LP	500C-16
American Recording Society	to 1958	33.33	Lateral	1-mil	AES	400N-12
Angel	to 1952	33.33	Lateral	1-mil	Old Orthophonic	500N-12.7
Argo	?	78.26	Lateral	3-mil	American 78	250N-16
Argo	?	33.33	Lateral	1-mil	RIAA	500R-13.7
Arizona	to 1955	33.33	Lateral	1-mil	Capitol	400N-12.7
Atlantic	to 1953	33.33	Lateral	1-mil	NAB	500B-16
Audio Fidelity	#901-#903	33.33	Lateral	1-mil	NAB	500B-16
Audiophile	1948-1958	78.26	Lateral	3-mil	Audiophile	500N-8
Audiophile	1954-1958	33.33	Lateral	1-mil	MGM	500N-12
Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
Bach Guild	to #500	33.33	Lateral	1-mil	LP	500C-16
Bach Guild	#501-#529	33.33	Lateral	1-mil	NAB	500B-16
Banner	?	33.33	Lateral	1-mil	LP	500C-16
Bartok	to 1952	33.33	Lateral	1-mil	LP	500C-16
Bartok	1952-1953	33.33	Lateral	1-mil	AES	400N-12
Bartok	#301-#304,#309	33.33	Lateral	1-mil	Bartok	630C-16
Bartok	#906-#920	33.33	Lateral	1-mil	Bartok	630C-16
Berliner	10 inch	71.29	Lateral	3-mil	Acoustic	800N-16
Berliner	10 inch	90.00	Lateral	3-mil	Acoustic	800N-16
Blue Note	to 1955	45.00	Lateral	1-mil	AES	400N-12
Blue Note	to 1955	33.33	Lateral	1-mil	AES	400N-12
Boston	to 1958	33.33	Lateral	1-mil	LP	500C-16
Broadcast	?	78.26	Lateral	3-mil	American 78	250N-6
Brunswick	to 1951	78.26	Lateral	3-mil	Modern 78	630N-8
Brunswick	1951-1955	33.33	Lateral	1-mil	AES	400N-12
Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
Cademon	#1001-#1022	33.33	Lateral	1-mil	Bartok	630N-16
Caedmon	#1001-#1022	33.33	Lateral	1-mil	Bartok	630N-16
Canyon	to C6160	33.33	Lateral	1-mil	AES	400N-12
Capitol	to 1951	78.26	Lateral	3-mil	American 78	250N-8
Capitol	1951-1955	78.26	Lateral	3-mil	Capitol	400N-12.7
Capitol	1948-1954	45.00	Lateral	1-mil	NAB	500B-16
Capitol	1947-1955	33.33	Lateral	1-mil	Capitol	400N-12.7
Capitol-Cetra	1951-1955	78.26	Lateral	3-mil	Capitol	400N-12.7
Capitol-Cetra	1948-1954	45.00	Lateral	1-mil	NAB	500B-16
Capitol-Cetra	1947-1955	33.33	Lateral	1-mil	Capitol	400N-12.7
Cetra-Soria	All	78.26	Lateral	3-mil	European 78	250N-0
Cetra-Soria	to 1961	33.33	Lateral	1-mil	LP	500C-16
Clarion	All	80.00	Lateral	1-mil	Acoustic	800N-16
Colosseum	to Jan 1954	33.33	Lateral	1-mil	NAB	500B-16
Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
Columbia	Large blue label	80.00	Vertical	3-mil	Acoustic	630N-12.7
Columbia	Runoff grooves	80.00	Lateral	3-mil	Acoustic	800N-12
Columbia	Electric, to 1940	78.26	Lateral	3-mil	American 78	250N-8
Columbia	1940 on	78.26	Lateral	3-mil	Columbia 78	300N-16
Columbia	1948-1953	45.00	Lateral	1-mil	NAB	500B-16
Columbia	1947-1955	33.33	Lateral	1-mil	LP	500C-16
Concert Hall	American to 1954	33.33	Lateral	1-mil	LP	500C-16
Concert Hall	British to 1956	33.33	Lateral	1-mil	London	500C-10.5
Concert Hall	Marked AES	33.33	Lateral	1-mil	AES	400N-12
Contemporary	#3501,#2501,#2502	33.33	Lateral	1-mil	AES	400N-12
Contemporary	#2505,#2507	33.33	Lateral	1-mil	AES	400N-12
Contemporary	#2001,#2002	33.33	Lateral	1-mil	AES	400N-12
Contemporary	#2504	33.33	Lateral	1-mil	NAB	500B-16
Cook	to 1958?	33.33	Lateral	1-mil	Cook	500N-15
Coral	to 1958?	33.33	Lateral	1-mil	NAB	500B-16
Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
Decca (American)	to 1951	78.26	Lateral	3-mil	FFRR 78	250N-D
Decca (American)	very few	78.26	Lateral	3-mil	Modern 78	500N-D
Decca (American)	1951-1953	78.26	Lateral	3-mil	AES	400N-12
Decca (American)	1953-Nov 1955	78.26	Lateral	3-mil	NAB	500B-16
Decca (American)	1953	45.00	Lateral	1-mil	AES	400N-12
Decca (American)	1953-Nov 1955	45.00	Lateral	1-mil	NAB	500B-16
Decca (American)	1947-1951	33.33	Lateral	1-mil	London	500C-10.5
Decca (American)	1953-1953	33.33	Lateral	1-mil	AES	400N-12
Decca (American)	1953-Nov 1955	33.33	Lateral	1-mil	NAB	500B-16
Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
Decca (British)	to 1944	78.26	Lateral	3-mil	European 78	250N-0
Decca (British)	1944-1956	78.26	Lateral	3-mil	FFRR 78	250N-D
Decca (British)	some 1949-1956	78.26	Lateral	3-mil	London	500C-10.5
Decca (British)	1949-1956	33.33	Lateral	1-mil	London	500C-10.5
Decca (European)	to 1944	78.26	Lateral	3-mil	European 78	250N-0
Decca (European)	1944-1950	78.26	Lateral	3-mil	FFRR 78	250N-D
Decca (European)	1950-1954	78.26	Lateral	3-mil	Telefunken	400N-0
Decca (European)	some 1954-1962	78.26	Lateral	3-mil	CCIR	350N-10
Decca (European)	1949-1954	33.33	Lateral	1-mil	Telefunken	400N-0
Decca (European)	most 1954-1962	33.33	Lateral	1-mil	RIAA	500R-13.7
Decca (European)	some 1954-1962	33.33	Lateral	1-mil	CCIR	350N-10
Dial	1948-1954	33.33	Lateral	1-mil	LP	500C-16
Diva	All	80.00	Lateral	3-mil	Acoustic	800N-16
Dot	to 1958	78.26	Lateral	3-mil	AES	400N-12
Dot	to 1958	45.00	Lateral	1-mil	AES	400N-12
Dot	to 1958	33.33	Lateral	1-mil	AES	400N-12
Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
Edison	1912-1929	80.00	Vertical	1-mil	Acoustic	800N-16
Edison	1929 very few	80.00	Lateral	1-mil	Acoustic	800N-16
Elektra	#2-#15,#18-#20	33.33	Lateral	1-mil	Bartok	630N-16
Elektra	#24-#26	33.33	Lateral	1-mil	Bartok	630N-16
Elektra	#17,#22	33.33	Lateral	1-mil	AES	400N-12
Elektra	#16,#21,#23,some #24	33.33	Lateral	1-mil	RIAA	500R-13.7
Emerson	1916-1918	70.59	Diagonal	3-mil	Acoustic	800N-16
Emerson	1918-1926	80.00	Lateral	3-mil	Acoustic	800N-16
Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
EMI-Angel	to 1952	33.33	Lateral	1-mil	Old Orthophonic	500N-16
EMI-HMV	1909	71.29	Lateral	3-mil	Acoustic	800N-12
EMI-HMV	1909-1926	76.59	Lateral	3-mil	Acoustic	800N-12
EMI-HMV	1927-	78.26	Lateral	3-mil	European 78	250N-0
EMI-HMV	1951-1954	33.33	Lateral	1-mil	NAB	500N-16
EMI-HMV	1954-1958?	33.33	Lateral	1-mil	HMV	500R-16
EMS	1951-1956	33.33	Lateral	1-mil	AES	400N-12
Epic	1948-1954	33.33	Lateral	1-mil	LP	500C-16
Esoteric	ES500,ES517	33.33	Lateral	1-mil	AES	400N-12
Esoteric	EST5,EST6	33.33	Lateral	1-mil	AES	400N-12
Exclusive	All	78.26	Lateral	3-mil	FFRR 78	250N-D
Festival	to 1955	33.33	Lateral	1-mil	LP	500C-16
Folkways	to 1955	33.33	Lateral	1-mil	LP	500C-16
Fonotipia	1904-1930	80.00	Lateral	3-mil	Acoustic	800N-16
Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
Genett	All	80.00	Vertical	3-mil	Acoustic	800N-16
Good Time Jazz	#1,#5-#8	33.33	Lateral	1-mil	NAB	500B-16
Good Time Jazz	#3,#9-#19	33.33	Lateral	1-mil	AES	400N-12
Good Time Jazz	#2,#4,#20-	33.33	Lateral	1-mil	RIAA	500R-13.7
Gramophone & Typewriter	to 1908	71.29	Lateral	3-mil	Acoustic	800N-16
Handel Society	to 1957	33.33	Lateral	1-mil	LP	500C-16
Haydn Society	to 1957	33.33	Lateral	1-mil	LP	500C-16
His Master's Voice	to 1909	71.29	Lateral	3-mil	Acoustic	800N-12
His Master's Voice	1909-1926	76.59	Lateral	3-mil	Acoustic	800N-12
His Master's Voice	1927-	78.26	Lateral	3-mil	European 78	250N-0
His Master's Voice	1951-1954	33.33	Lateral	1-mil	NAB	500N-16
His Master's Voice	1954-1958?	33.33	Lateral	1-mil	HMV	500R-16
Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
Kapp	#101-#103,#1000-#1001	33.33	Lateral	1-mil	Kapp	800N-16
Kendall	to 1958?	33.33	Lateral	1-mil	NAB	500B-16
L'Oiseau-Lyre	to 1954	33.33	Lateral	1-mil	London	500C-10.5
London	first few	33.33	Lateral	1-mil	LP	500C-16
London	to #846	33.33	Lateral	1-mil	London	500C-10.5
London International	first few	33.33	Lateral	1-mil	LP	500C-16
London International	to #846	33.33	Lateral	1-mil	London	500C-10.5
Lyrichord	1948-1951	33.33	Lateral	1-mil	LP	500C-16
Lyrichord	1951-1957?	33.33	Lateral	1-mil	NAB	500B-16
Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
MacGregor	to 1965?	78.26	Lateral	3-mil	American 78	250N-8
Majestic	to 1918	80.00	Vertical	3-mil	Acoustic	800N-16
Mercury	to 1951	78.26	Lateral	3-mil	American 78	250N-8
Mercury	1951-Oct 1954	78.26	Lateral	3-mil	AES	400N-12
Mercury	1951-Oct 1954	45.00	Lateral	1-mil	AES	400N-12
Mercury	1951-Oct 1954	33.33	Lateral	1-mil	AES	400N-12
MGM	to 1952	33.33	Lateral	1-mil	NAB	500B-16
MGM	to 1952 a few	33.33	Lateral	1-mil	MGM	500N-12
Musica	to 1925	76.59	Lateral	3-mil	Acoustic	800N-16
Music Treasures	All	33.33	Lateral	1-mil	LP	500C-16
Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
New	to 1954	33.33	Lateral	1-mil	LP	500C-16
Nixa	to 1955	33.33	Lateral	1-mil	LP	500C-16
Nixa	to 1955 labeled AES	33.33	Lateral	1-mil	AES	400N-12
Nixa	to 1955 labeled NAB	33.33	Lateral	1-mil	NAB	500B-16
Nocturne	LP1-LP3,LP5	33.33	Lateral	1-mil	AES	400N-12
Nocturne	XP1-XP10	33.33	Lateral	1-mil	AES	400N-12
Oceanic	to 1958	33.33	Lateral	1-mil	LP	500C-16
Odeon	to 1925, rest are EMI-HMV	70.59	Lateral	1-mil	Acoustic	800N-16
Oiseau-Lyre	to 1954	33.33	Lateral	1-mil	London	500C-10.5
Okeh	to 1918	80.00	Vertical	3-mil	Acoustic	800N-16
Okeh	1918-1926	80.00	Lateral	3-mil	Acoustic	800N-16
Okeh	1926-1941	78.26	Lateral	3-mil	American 78	250N-8
Okeh	1941 on	78.26	Lateral	3-mil	Modern 78	400N-8
Opera Disc	to 1925	76.59	Lateral	3-mil	Acoustic	800N-16
Overtone	#1-#3	33.33	Lateral	1-mil	NAB	500B-16
Oxford	to 1958?	33.33	Lateral	1-mil	LP	500C-16
Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
Pacific Jazz	#1-#13	33.33	Lateral	1-mil	AES	400N-12
Pacific Jazz	to 1953	33.33	Lateral	1-mil	Pacific Jazz	500C-12
Paramount	to 1918	80.00	Vertical	3-mil	Acoustic	800N-16
Pathe	to 1926 etch label	90.00	Vertical outward	7-mil	Acoustic	800N-16
Pathe	to 1926 14 inch	90.00	Vertical outward	7-mil	Acoustic	800N-16
Pathe	1926-1931 20 inch	120.00	Vertical outward	7-mil	Acoustic	800N-16
Pathe	1926-1931 10 inch	80.00	Vertical	3-mil	Acoustic	800N-16
Pathe	to 1926	78.26	Lateral	3-mil	European 78	250N-0
Period	1949-1953	33.33	Lateral	1-mil	NAB	500B-16
Philharmonia	to 1958?	33.33	Lateral	1-mil	AES	400N-12
Philips	to 1953	78.26	Lateral	3-mil	Philips	400N-6
Philips	to 1953	45.00	Lateral	1-mil	Philips	400N-6
Philips	to 1953	33.33	Lateral	1-mil	Philips	400N-6
Polymusic	to 1958	33.33	Lateral	1-mil	NAB	500B-16
Polydor	?	76.59	Lateral	3-mil	Acoustic	800N-16
Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
Rachmaninoff Society	to 1958?	33.33	Lateral	1-mil	LP	500C-16
RCA	1931-1941	78.26	Lateral	3-mil	American 78	250N-6
RCA	1931 "DUO"	33.33	Lateral	3-mil	American 78	250N-6
RCA	1941-1947	78.26	Lateral	3-mil	Old RCA	800N-8
RCA	some 1947-Sep 1952	78.26	Lateral	3-mil	Old RCA	800N-8
RCA	1947-1951	78.26	Lateral	3-mil	RCA	800N-12.7
RCA	1950-Sep 1952	78.26	Lateral	3-mil	Old Orthophonic	500N-12.7
RCA	some 1949-1952	45.00	Lateral	1-mil	Old RCA	800N-8
RCA	1949-1951	45.00	Lateral	1-mil	RCA	800N-12.7
RCA	1950-Sep 1952	45.00	Lateral	1-mil	Old Orthophonic	500N-12.7
RCA	1949-1951	33.33	Lateral	1-mil	RCA	800N-12.7
RCA	1950-Sep 1952	33.33	Lateral	1-mil	Old Orthophonic	500N-12.7
Remington	to 1958?	33.33	Lateral	1-mil	NAB	500B-16
Renaissance	1949-1952	33.33	Lateral	1-mil	LP	500C-16
Renaissance	1952-1954	33.33	Lateral	1-mil	Pacific Jazz	500C-12
Riverside	to 1955	33.33	Lateral	1-mil	AES	400N-12
Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
Stradivari	to 1948	33.33	Lateral	1-mil	LP	500C-16
Technichord	All	78.26	Lateral	3-mil	Technichord	800N-12
Telefunken	1945-1950	78.26	Lateral	3-mil	FFRR 78	250N-D
Telefunken	1951-1953	78.26	Lateral	3-mil	Telefunken	400N-0
Telefunken	1951-1953	33.33	Lateral	1-mil	Telefunken	400N-0
Telefunken	1954-1962	33.33	Lateral	1-mil	CCIR	350N-10
Tempo	All	78.26	Lateral	3-mil	American 78	400C-6
Tempo	1948-1953	33.33	Lateral	1-mil	LP	500C-16
Tempo	1954-1958?	33.33	Lateral	1-mil	NAB	500B-16
Theme	All	78.26	Lateral	3-mil	American 78	250N-6
Transradio	to 1958?	33.33	Lateral	1-mil	LP	500C-16
Urania	to 1954	33.33	Lateral	1-mil	LP	500C-16
Urania	#7059,#7063,#7065,#7066	33.33	Lateral	1-mil	AES	400N-12
Urania	#7069,#224,#603	33.33	Lateral	1-mil	AES	400N-12
Label	Identifying Features	Speed	Cut	Stylus	Curve Name	Parameters
Vanguard	1948-1951	33.33	Lateral	1-mil	LP	500C-16
Vanguard	#411-#442,#6000-#6018	33.33	Lateral	1-mil	AES	400N-12
Vanguard	#7001-#7011,#8001-#8004	33.33	Lateral	1-mil	AES	400N-12
Victor	1909	71.29	Lateral	3-mil	Acoustic	800N-12
Victor	1909-1926	76.59	Lateral	3-mil	Acoustic	630C-12
Victor	1926-1931	78.26	Lateral	3-mil	American 78	250N-6
Victor	1931 "DUO"	33.33	Lateral	3-mil	American 78	250C-6
Vocalion	to 1919	80.00	Vertical	3-mil	Acoustic	800N-16
Vox	1948-1951 or labeled LP	33.33	Lateral	1-mil	LP	500C-16
Vox	1951-1954	33.33	Lateral	1-mil	NAB	500B-16
Vox	Labeled AES	33.33	Lateral	1-mil	AES	400N-12
Westminster	to Oct 1955	33.33	Lateral	1-mil	LP	500C-16
Westminster	labeled AES	33.33	Lateral	1-mil	AES	400N-12
Zonophone	All	70.59	Lateral	3-mil	Acoustic	630N-16

The following is a list of 1950s labels that used nothing but RIAA (500R-13.7):

Bethlehem
Classic Editions
Chess
Clef
Composers Recordings
McIntosh
Montilla
New Jazz
Norgram
Prestige
Romany
Roulette
Savoy
Walden

EQUALIZING OLD RECORDS