Трансформатор LUNDAHL LL1585. Инструкция на английском языке

Tibeliusgatan 7                        International    Domestic
S-761 50 NORRTALJE         Phone    +46 - 176 13930   0176-13930
SWEDEN                     Fax       +46 - 176 13935  0176-13935
High Level Audio Output Transformer
LL1585
LL1585 is a high level audio line output transformer for balanced or unbalanced drive. The transformer is built
from two three-section coils, with primaries and secondaries separated by electrostatic shields, and a audio C-
core of our own production. The transformer is housed in a mu-metal housing.
The LL1585 is  (as all output transformers) ideally used with mixed feedback drive circuits. (See separate paper
for mixed feedback design principles).
Turns ratio:                                                    1 + 1 : 1 + 1
Dims (Length x Width x Height above PCB (mm)):                  47 x 34 x 21
Pin layout (viewed from component side) and winding schematics:
1                7
6               12
2
5               11
4                               3                8
LL1585
3   (top view)  9
6                12
2                 8
5
1                 7
4                11
9
Spacing between pins:                                        5.08 mm  (0.2")
Spacing between rows of pins:                                35.56 mm  (1.4")
Weight:                                                      130 g
Core:                                                        Audio C-core
Housing:                                                     Mu-metal
Rec. PCB hole diameter:                                      1.5 mm
Static resistance of each primary:                           64 W
Static resistance of each secondary:                         64 W
Leakage inductance of secondaries (sec. in series):          0.4 mH
No-load impedance, typically (primaries in series):          8 kW  @ 50 Hz, 15V RMS.
Optimum source impedance:                                    Minus 128 W   (Mixed feedback drv)
Balance of output (according to IRT, source < 10 W  , Load 600 W):  > 60 dB
Maximum output level before saturation (sec. in series, load 600 W)  +  28 dBU @ 20 Hz
Frequency response (source  10 W, d 600 W):                  10 Hz -- 100 kHz +/- 0.3 dB
loa
Loss across transformer (at midband with 600 W load):        3 dB
Isolation between primary and secondary windings / between
windings and core:                                           4 kV / 2 kV
Suggested use
6               12
5               11
4    LL1585
3               9
2                8
1                7
R20001213