It
is becoming increasingly obvious that applying transformers
at every stage of an amplifier yields a great benefit
in sound quality, provided off course the transformer
in question is of an appropriate quality and design.
Replacing any coupling capacitor with a well designed
and correctly matched driver or interstage transformer
yields an almost shocking improvement in sound and should
be tried to fully understand what a good wideband transformer
has to offer.
All the pre-amplifier output and interstage transformers
are the same size, 78mm wide by 67mm high by 67mm deep,
with mounting holes centre to centre at 54mm by 54 mm
both with transformer standing up or lying down. All Copper
– Copper transformers have copper lead out wires,
Copper – Silver have copper on the primary and Audio
Note silver leadout wires on the secondary and the Silver
naturally have silver all round.
|
interstage transformers 1:1 ratio
Suggested valves are ECC82, 5687, E182CC, 6SN7 and 6463.
Permissable standing current is 10mA.
|
Type
|
Wiring
Primary - Secondary
|
Core
material
|
Price
each
ex.VAT |
Price
each
incl .VAT |
| TXI-013-1-IE-IAPT-IAPT-FC |
copper-copper |
M4
IE Core |
176.40 |
209.90 |
| TXI-013-1-I-IAPT-FC |
copper-copper |
AN
Improved HiB |
401.35 |
477.60 |
| TXI-013-1-S-IAPT-IAPT-FC |
copper-copper |
AN
Super HiB |
481.25 |
572.70 |
| TXI-013-1-U-IAPT-IAPT-FC |
copper-copper |
AN
Ultra HiB |
720.95 |
857.95 |
| TXI-013-2-S-IAPT-ANPT-FC |
Copper/AN-Silver |
AN
Super HiB |
746.85 |
888.75 |
| TXI-013-2-U-IAPT-ANPT-FC |
Copper/AN-Silver |
AN
Ultra HiB |
1064.40 |
1266.65 |
| TXI-013-2-50-IAPT-ANPT-FC |
Copper/AN-Silver |
AN-Perma
50% Nickel 0.08mm |
1556.10 |
1851.75 |
| TXI-013-2-55-IAPT-ANPT-FC |
Copper/AN-Silver |
AN
Super Perma 55% Nickel 0.08mm |
2306.00 |
2744.15 |
| TXI-013-3-U-ANPT-ANPT-SC |
Audio
Note™ Silver |
AN
Ultra HiB |
1710.45 |
2035.45 |
| TXI-013-3-50-ANPT-ANPT-SC |
Audio
Note™ Silver |
AN-Perma
50% Nickel 0.08mm |
2083.85 |
2479.80 |
| TXI-013-3-55-ANPT-ANPT-SC |
Audio
Note™ Silver |
AN
Super Perma 55% Nickel 0.08mm |
2750.55 |
3273.15 |
|
interstage
transformers 1:1 ratio
Suggested valves are 6BX7, 6DN7 and 6SN7GTB. Permissable
standing current is 20mA.
|
Type
|
Wiring
Primary - Secondary
|
Core
material
|
Price
each
ex.VAT |
Price
each
incl .VAT |
| TXI-014-1-IE-IAPT-IAPT-FC |
copper-copper |
M4
IE Core |
176.40 |
209.90 |
| TXI-014-1-I-IAPT-FC |
copper-copper |
AN
Improved HiB |
401.35 |
477.60 |
| TXI-014-1-S-IAPT-IAPT-FC |
copper-copper |
AN
Super HiB |
481.25 |
572.70 |
| TXI-014-1-U-IAPT-IAPT-FC |
copper-copper |
AN
Ultra HiB |
720.95 |
857.95 |
| TXI-014-2-S-IAPT-ANPT-FC |
Copper/AN-Silver |
AN
Super HiB |
746.85 |
888.75 |
| TXI-014-2-U-IAPT-ANPT-FC |
Copper/AN-Silver |
AN
Ultra HiB |
1064.40 |
1266.65 |
| TXI-014-2-50-IAPT-ANPT-FC |
Copper/AN-Silver |
AN-Perma
50% Nickel 0.08mm |
1556.10 |
1851.75 |
| TXI-014-2-55-IAPT-ANPT-FC |
Copper/AN-Silver |
AN
Super Perma 55% Nickel 0.08mm |
2306.00 |
2744.15 |
| TXI-014-3-U-ANPT-ANPT-SC |
Audio
Note™ Silver |
AN
Ultra HiB |
1710.45 |
2035.45 |
| TXI-014-3-50-ANPT-ANPT-SC |
Audio
Note™ Silver |
AN-Perma
50% Nickel 0.08mm |
2083.85 |
2479.80 |
| TXI-014-3-55-ANPT-ANPT-SC |
Audio
Note™ Silver |
AN
Super Perma 55% Nickel 0.08mm |
2750.55 |
3273.15 |
|
| |
| |
