Chinese

Audio C-60

ACME MAGNETIC TAPES LTD.

*AUDIO MAGNETIC TAPE SPECIFICATIONS*
C-60
Measuring Condition	Unit	Ms-580	Ms-590	Ms-680	Ms-690
1.Tape speed	cm/s	4.76
2.Track Width	mm	0.6
3.Gap Length:
Record head	µm	3.0
Playback head	µm	1.5
4.Playback Equalization	µs	120+3180
5.Reference Tape		IEC-IR723DG

Electroacoustic Properties
1.working Bias	%	100(+0/-10)
2.Sensitivity at 315Hz	dB	> -2.3	> -2.5	> -1.3	> -1.8
3.Frequency Response
at 8KHz	dB	> +0.5	> +0.0	> +0.7	> +0.3
at 12KHz	dB	> +0.7	> +0.5	> +0.9	> +0.9
4.Maximum output level at
315Hz,THD:5%	dB	> +1.2	> +1.4	> +2.8	> +2.5
5.Saturation level at 8KHz	dB	> -7.5	> -7.0	> -6.5	> -6.0
at 10KHz	dB	> -9.0	> -8.5	> -8.0	> -7.0
6.Signal to noise ratio	dB	¯-50

Magnetic properties
1.Coercivity (Hc)	Oe	340	375	340	375
2.Rententivity(Br)	G	1050	1000	1100	1100
3.Squareness(Br/Bs)		0.75	0.88	0.75	0.88

Physical properties
1.Base material		Semi Tensilized
		Polyester film
2.Tape width	mm	3.81(+0/-0.05)
3.Base thickness	µm	12(normal)
4.Coating thickness	µm	2.8(±0.5)	2.0(±0.5)	3.5(±0.5)	3.5(±0.5)
5.Total thickness	µm	14.8(±0.5)	14(±0.5)	15.5(±0.5)	15.5(±0.5)
6.Base film specifications:
Yield strength	kg/3.81	-
Breaking strength	mm	-
Residual elogation	kg/3.81	-
	mm
	%
7.Color	-	Tan	Dark	Tan	Dark
			brown		brown
NOTE: SPECIFICATIONS MAY BE VARIED WITHOUT PRIOR NOTICE

Last Updated on 1999.08.20