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Lucky 3.81mm High Speed Duplicate Pancakes
Product Use and Features:
Lucky 3.81mm
LK520 pancakes are especially designed
and manufactured for 32, 64 and 80
times high speed duplicate recording.
They can be used for recording music,
opera and language programs with highfidelity.
The distinct
feature of LK520 pancakes is high
durability. Tone qualities of sound
recorded with Lucky pancakes will
not change after being played more
than 500 times. So Lucky pancakes
are welcome by user always.
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Technical Specifications:
| ITEM |
UNIT |
C-60 |
C-90 |
| Tape
width |
mm |
3.81 |
3.81 |
| Total
thickness |
μm |
≤18 |
≤14 |
| Film
thickness |
μm |
11-12 |
7-8 |
| Tape
length |
m |
2500 |
3000/3500 |
| 3
% yield strength |
N |
≥5 |
≥3.5 |
| Breaking
strength |
N |
≥10 |
≥7 |
| Adherence
between layers |
° |
≤15 |
≤15 |
| M.O.L |
dB |
1.5 |
1.5 |
| S.O.L |
dB |
-9.0 |
-9.0 |
| Relative
sensitivity at 315 Hz |
dB |
-1.0 |
-1.0 |
| Relative
sensitivity at 10 kHz |
dB |
-2.0 |
-2.0 |
| Bias
noise (A curve) |
dB |
-54 |
-54 |
| Print-through
|
dB |
52 |
52 |
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Lucky Audio Cassette Tapes
Product Use and Features:
Lucky audio
cassette tapes feature high output,
low noise and wide dynamic range,
and also they feature good tape running
stability, high durability. Lucky
Tapes are long life and high grade
tapesfor recording music, opera and
language programs.
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Technical
Specifications:
| ITEM |
UNIT |
C
- 46 |
C
- 60 |
C
- 90 |
| Tape
width |
mm |
3.81 |
3.81 |
3.81 |
| Total
thickness |
μm |
≤18 |
≤18 |
≤14 |
| Tape
length |
m |
68 |
90 |
135 |
| 3
% yield strength |
N |
≥5 |
≥5 |
≥3.5 |
| Breaking
strength |
N |
≥10 |
≥10 |
≥7 |
| M.O.L |
dB |
1.5 |
1.5 |
1.5 |
| S.O.L |
dB |
-9.0 |
-9.0 |
-9.0 |
| Relative
sensitivity at 315 Hz |
dB |
-1.0 |
-1.0 |
-1.0 |
| Relative
sensitivity at 10 kHz |
dB |
-2.0 |
-2.0 |
-2.0 |
| Bias
noise(A curve) |
dB |
-54 |
-54 |
-54 |
| Print-through
|
dB |
52 |
52 |
52 |
| Erasability |
dB |
70 |
70 |
70 |
☆ The color and length of audio cassette tapes may be determined by
the clients.
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