Tango
made by ISO-tango



ISO-Tango has made a restart and now use the name : ISO Transformers.
New dircetor is Mr. Takamichi Osawa. Mr. Sukzuki, the old ISO-Tango director is working as technical advisor.

The information below about the old ISO-Tango transformers is only for reference.



Single-Ended output transformers
 

Type

Power

Prim.
imp.

Sec.
imp.
Freq. response
(Rp=Zp, -2dB)
Design/max
current
Application

Dimension
(mm)
Weight

   
                     
X-10SF
40
(30Hz)
10K
4,6,8,16
20Hz-55KHz
70/130mA

211,845

125x125x180
7,7Kg
   

   
FC-30-10S
(XE-60-10SNF)

30
(40Hz)

10K
4,6,8,16
30Hz-50KHz
70/90mA

211,845

110x100x114
4,0Kg
   

   
FC-30-3.5S
(XE-60-3.5S)

30
(40Hz)

3,5K
4,6,8,16
20Hz-100KHz
80/170mA

300B, 50, PX-25

110x100x114
4,0Kg
   
                     
FE-20-14S
(FW-20-14S)

20
(60Hz)

14K
4,8,16
30Hz-35KHz
30/65mA

801A,VT62,
VT25, 10Y

83x78x104
2,3Kg
   
                     
XE-20S

20

5K
3,5K
2,5K
8,16
35Hz-70KHz
25Hz-90KHz
20Hz-90KHz
80/160mA

300B, 50,
VT-52, 2A3
KT-66, 6550

83x78x104
2,1Kg
   
                     
U-808

20

5K
3,5K
2,5K
2K
8,16
8,16
4,8
4,8
50Hz-50KHz
35Hz-60KHz
25Hz-65KHz
20Hz-65KHz
100/130mA

KT88, 6550
KT66, 71A
7591, 6L6
2A3, EL34

94x83x85
1,8Kg
   
                     
FE-12S

12

7K
5K
3,5K
2,5K
8,16
8,16
4,8
4,8
45Hz-35KHz
35Hz-50KHz
25Hz-70KHz
20Hz-80KHz
60/80mA

45.71A
6V6, 6BQ5
6L6,EL34

83x78x80
1,6Kg
   
                     
U-808

20

5K
3,5K
2,5K
2K
8,16
8,16
4,8
4,8
50Hz-50KHz
35Hz-60KHz
25Hz-65KHz
20Hz-65KHz
100/130mA

KT88, 6550
KT66, 71A
7591, 6L6
2A3, EL34

94x83x85
1,8Kg
   



                   
Push-Pull output transformers
                     

Type

Power

Prim.
imp.

Sec.
imp.
Freq. response
(Rp=Zp, -2dB)
Design
current
Application

Dimension
(mm)
Weight

   
                     
FC-120-5
120
(30Hz)
5K
4,8,16
4Hz-90KHz
420mA

300B, KT88
KT66, EL156

125x125x138
7.7Kg
   
                     
XE-60-5
60
(30Hz)
5K
4,8,16
4Hz-80KHz
270mA

300B, KT88
EL34

110x100x114
4.0Kg
   
                     
FE-50-5
50
(30Hz)
5K
4,6,8,16
7Hz-60KHz
300mA

300B, 2A3
KT88, EL34

110x100x114
4.3Kg
   
                     
FX-40-5
40
(45Hz)
5K
4,8,16
4Hz-80KHz
260mA

2A3, 6L6
EL34

83x78x104
2.4Kg
   
                     
FE-25-8
25
(50Hz)
8K
4,8,16
10Hz-50KHz
130mA

6V6, 6BQ5
71A

83x78x81
1.6Kg
   
                     
FE-25-5
25
(50Hz)
5K
4,8,16
10Hz-80KHz
160mA

45, 6V6
6CW5

83x78x81
1.6Kg
   
                     
FE-10-10
10
(50Hz)
10K
4,8,16
20Hz-50KHz
90mA

6AR5, 6AQ5

56x50x81
0.8Kg
   
                     
FE-10-8
10
(50Hz)
8K
4,8,16
20Hz-60KHz
110mA

6BQ5, 6GW8

56x50x81
0.8Kg
   
                     


Interstages
 

Type

Prim.
Impedance



freq.response

Prim.
Inductance
max. DC-current
Max. output voltage

Rp driver tube

weight

   
 
NC-14
5K
1+1:1+1
25Hz-40KHz
Rp=5K, Ib=15mA
50H
Ib=15mA
30mA

160Vrms
40Hz

Rp=3~7K
0,8Kg
   

   
NC-16
7K
1+1:2+2
25Hz-20KHz
Rp=7K, Ib=7mA
70H
Ib=7mA
15mA

200Vrms
40Hz

Rp=5~10K
0,8Kg
   

   
NC-20F
5K
1:1
18Hz-80KHz
Rp=5K, Ib=20mA
60H
Ib=20mA
30mA

150Vrms
10Hz

Rp=1~10K
2,0Kg
   
   



Line-output transformer
 

Type

Prim.
Impedance

Sec. Impedance

freq.response

Prim.
Inductance
max. DC-current

weight

   
                 
NP-126
10K (split)
20K (split)
0-75-150-300-600
0-150-300-600-1K2
20Hz-30kHz (-2dB)
Rp=Zp, Ib=10mA
110H
Ib=10mA

20mA (series)

0,8Kg
   



The Tango NP-126 has 2 primary windings and can be used as Single-ended (SE) to SE, or PP to SE, or SE to PP.

With the 2 primary windings connected in series the NP-126 can be used with tubes which internal resistance is between 10K and 20K. (tubes with lower internal resistance are always possible) When the primary windings are connected in parallel the NP-126 can be used with tubes which internal resistance is between 2K5 and 5K.

   


Chokes

These chokes can be used as anode/plate chokes and will give in this application much better sound quality. The "TC" chokes have a double winding which can be connected in series or in parallel. Of coarse these chokes can also be used as powersupply chokes.

               

Type

Prim.
Inductance

Maximal mA

Resistance

weight

dimension

   
               
TC-160-15W
(double winding)
160H (15mA) or
40H (30mA)
20mA
40mA
1160
290
0,8Kg
56 x 50 x 81mm
   
 
TC-60-35W
(double winding)
60H (35mA) or
15H (70mA)
50mA
100mA
730
183
0,8Kg
56 x 50 x 81mm
   
               
TC-10-130W
(double winding)
10H (130mA) or
2,5H (260mA)
150mA
300mA
130
33
0,8Kg
56 x 50 x 81mm
   
 

             
Chokes ( C-input )
These chokes are designed for a powersupply in which the first element is a capacitor
               

Type

Prim.
Inductance

Maximal mA

Resistance

weight

dimension

   

   
LC-15-150D
15H (150mA)
200mA
165
2,4Kg
83 x 78 x 104mm
   
               
LC-10-200D
10H (200mA)
260mA
115
2,4Kg
83 x 78 x 104mm
   
             
LC-5-250D
5H (250mA)
330mA
65
2,4Kg
83 x 78 x 104mm
   
             
LC-3-350D
3H (350mA)
450mA
40
2,4Kg
83 x 78 x 104mm
   
               
LC-2-450D
2H (450mA)
500mA
23
2,4Kg
83 x 78 x 104mm
   

   

   
EC-12-150D
12H (150mA)
170mA
180
1,7Kg
83 x 78 x 81mm
   

   
EC-8-200D
8H (200mA)
230mA
125
1,7Kg
83 x 78 x 81mm
   

   
EC-5-250D
5H (250mA)
300mA
65
1,7Kg
83 x 78 x 81mm
   

   

             
EC-12-150S
12H (150mA)
170mA
180
1,5Kg
72 x 72 x 84mm
   

   
EC-8-200S
8H (200mA)
230mA
125
1,5Kg
72 x 72 x 84mm
   

   
EC-5-250S
5H (250mA)
300mA
65
1,5Kg
72 x 72 x 84mm
   

             

   
SC-5-150
5H (150mA)
170mA
85
0,8Kg
56 x 50 x 81mm
   

             
SC-3-210
3H (210mA)
230mA
55
0,8Kg
56 x 50 x 81mm
   

             
 
Chokes ( L-input )
These chokes are designed for a powersupply in which the first element is an inductor
               

Type

Prim.
Inductance

Maximal Vrms

Resistance

weight

dimension

   
               
LL-20-150D
20H (150mA)
700V
220
2,4Kg
83 x 78 x 104mm
   
               
LL-12-200D
12H (200mA)
600V
130
2,4Kg
83 x 78 x 104mm
   
               
LL-5-300D
5H (300mA)
500V
47
2,4Kg
83 x 78 x 104mm
   
               
               


Power transformers 230 V

Type
Specification
weight (Kg)
   
 
potted version

MS-4042R
0-20V-360V-400V/0,72A AC (420mA DC Bridge) + 0-70V/60mA AC
2X 6,3V/4A + 2X 6,3V/3A
KT-88, 6550A,
EL156 stereo PP
9.0
   
   
MS-UVD•H
0-370V-400V/0,6A AC + 150V-0-150V/60mA AC
2X 10V/5A 2X 6,3V/2A
211, 845
stereo SE
8.0
   
   
ME-225

400V-360V-0-100V-360V-400V/0.225A AC (250mA DC CT)
2X 5V/3,3 + 0-6,3V-10V/3,3A + 0-5V-6,3V/3,3A

300B stereo SE
KT-88 mono PP
7.0
   
   
GS-115D
280V-250V-0-250V-280V/0,12A AC (120mA DC CT)
0-5V-6,3V/2A + 2X 6,3V/1,5A
6V6, 6F6, EL84
stereo SE
2.7
   

   



open version, see picture below

MS-4042
0-20V-360V-400V/0,72A AC (420mA DC Bridge) + 0-70V/60mA AC
2X 6,3V/4A + 2X 6,3V/3A
KT-88, 6550A,
EL156 stereo PP
6.5
   
   
MS-250CT
450V-400V-0-90V-400V-450V/0,25A AC (250mA DC CT)
0-5V/4A + 2X 5V/2A + 0-6,3V-10V/4A
300B stereo SE
5.7
   
   
MX-280
320V-280V-0-70V-280V-320V/0,28A AC (300mA DC CT)
0-5V/3A + 2X 0-2,5V-6,3V/5,2A + 0-6,3V/3A
2A3, 6B4G, 6L6
VT52 stereo PP
5.3
   
   
GS-4018
400V-370V-0-370V-400V/0,18A AC (180mA DC CT)
0-5V/3A + 2X 5V/2,5A + 0-6,3V-10V/2A
300B stereo SE
300B mono PP
4.5
   
   
GS-250
280V-250V-0-60V-250V-280V/0,25A AC (250mA DC CT)
0-5V-6,3V/3A + 3X 0-6,3V/2,5A
6L6, 6V6, 6B4G
VT52 stereo PP
4.5
   
   
MS-160
320V-280V-0-70V-280V-320V/0,16A AC (160mA DC CT)
0-5V/3A + 2X 2,5V/3A + 0-6,3V/3A
2A3, 45
stereo SE
3.8
   
   
MS-105
480V-250V-0-250V-480V/0,105A AC (110mA DC CT)
0-5V-6,3V/3A + 2X 0-7,5V/2A + 0-6,3V/2A
10Y, 801A
stereo SE
3.8
   
   
MX-205
320V-280V-0-70V-280V-320V/0,205A AC (210mA DC CT)
0-5V/3A + 3X 0-6,3V/2A

6V6, 6F6, EL84
stereo PP

3.8
   
   
GS-165
250V-220V-0-220V-250V/0,165A AC (165mA DC CT)
3X 0-6,3V/1,6A + 0-5V-6,3V/2A
6GW8, 6BM8,
EL84 stereo SE
2.8
   
   
PH-185
280V-250V-0-60V-250V-280V/0,185A AC (190mA DC CT)
0-5V/2A + 2X 6,3V/2,5A + 0-6,3V/2A
6V6, 6F6, 6GW8
EL84 stereo PP
3.3
   
   
GS-115
280V-250V-0-250V-280V/0,12A AC (120mA DC CT)
0-5V-6,3V/2A + 2X 0-6,3V/1,5V
6V6, 6F6,
EL84 stereo PP
2.2
   
   
PH-100S
280V-250V-0-250V-280V/0,1A AC (100mA DC CT)
2X 0-5V-6,3V/2A + 0-6,3V/2,5A
6GW8, EL84
stereo SE
2.3
   
   
PH-100
2.1
   
   
ST-30S

260V-0-260V/30mA AC (30mA DC)
0-15V-17V/2A (DC Bridge 1,2A) + 0-6,3V/1A

pre-amplifier
1.4