Трансформатор LUNDAHL LL1648. Инструкция на английском языке

Tibeliusgatan 7                        International    Domestic
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Mains Transformers for Tube Amplifiers
LL1648, LL1649, LL1650, LL1651
C-core mains transformers. The core is assembled with a small air-gap to compensate for any mains DC-
unbalance. Estimated power rating 250 VA which can be increased with good cooling. Magnetic stray is
extremely small if secondaries of the two coils are loaded identically.
Physical dimensions, pin and mounting hole  layout (all dimensions in mm)
53
Primary connections                                             Secondary connections
5      6    7      8                                                 12    14   13     11
4 x M4
Mounting holes
90                                             14a   13a
110
Bottom view                       16a              15a
1     2    3      4                                                 16    18    17    15
14a, 13a, 16a and 15a are old positions
78                            85                        for secondary pins 14, 13, 16 and 15
Weight   2.5 kg
Winding schematics:
1     2                     4    3
Coil 1   Coil 2
5    6   13  11   17  15    8    7  14  12   18  16
Connection alternatives. Primary in series for 230V (left) and in parallel for 115V (right).
1         11                                     1         11
Prim              2         13         Sec 2     Prim              2         13         Sec 2
230V              3         12                   115V              3         12
4         14         Sec 3                       4         14         Sec 3
5         15                                     5         15
Sec 1             6         17         Sec 4      Sec 1            6         17         Sec 4
7         16                                     7         16
8         18         Sec 5                       8         18         Sec 5
Copper resistance, no load output voltages and max recommended transformer current (rms) with
primary connected to 230 V serial / 115V parallel and Sec 1 connected as above
Type     Primary res.      Sec 1         Sec 2        Sec 3         Sec 4         Sec 5
Serial/parallel
LL1648      7.5 W / 1.9 W  20 W / 350 V   0.1 W / 5.9 V   0.1 W / 5.9 V   0.1 W / 6.6 V   0.1 W / 6.6 V
0.63A         3.1A          3.1A         3.1A          3.1A
LL1649      7.5 W / 1.9 W  8.4 W / 230 V   0.1 W / 6.6V   0.1 W / 6.6V   0.1 W / 6.6 V   0.1 W / 6.6 V
1.0A          3.1A          3.1A         3.1A          3.1A
LL1650      7.5 W / 1.9 W  20 W / 350 V   0.1 W / 6.6 V   0.1 W / 6.6V   0.1 W / 6.6 V   0.1 W / 6.6 V
0.63A         3.1A          3.1A         3.1A          3.1A
LL1651      7.5 W / 1.9 W  42 W / 500V   0.1 W / 6.6 V   0.1 W / 6.6V   0.1 W / 6.6 V   0.1 W / 6.6 V
0.43A         3.1A          3.1A         3.1A          3.1A
Please note!   Output current from rectifier: 63% of above with condensor input rectifier, 95% of above with
R010507
choke input rectifier.