TECHNICAL FEATURES:

Primary Impedance: 5K

Secondary Impedance:4/8 Ω

ultralinear tap :42% ( or23% -33% on request)

Primary Inductance Lp=39H @17Vrms/50hz /80mA dc

Leakage inductance : 10mH

airgap set for : 80-120mA (οn request)

Primary Dc resistance: 229 Ohm

Max Dc current :160mA

Maximum output power :25W

Frequency Response:

16Hz-22Khz -1dB (Rsource=5k)

12Hz-33Khz -2dB

core material:High quality CRGO silicon steel M6 (19000Gauss), DIN EN 10107 ,made in Europe

core size : EI 96/50

lamination thickness /0.35mm

dimensions:119mmx100mmx81mm

weight :3Kgr per transformer

Winding method :layer wound with insulation insertion between every layer.

Winding Wire: Double coated Grade 2 enamelled copper wire made in Europe Wound in Precision Multi section winding, for reduced leakage inductance and high dielectric strength.

Mounting:End bells for Vertical placement

TECHNICAL FEATURES:

Primary Impedance: 3K5

Secondary Impedance:4/8 Ω

ultralinear tap :42% ( or23% -33% on request)

Primary Inductance Lp=30H @17Vrms/50hz /80mA dc

Leakage inductance : 5,2mH

airgap set for : 80-120mA (οn request)

Primary Dc resistance: 229 Ohm

Max Dc current :160mA

Maximum output power :25W

Frequency Response:

10Hz-38Khz -1dB (Rsource=1k5)

6,8Hz-44Khz -2dB

5,6Hz-50Khz-3dB

core material:High quality CRGO silicon steel M6 (19000Gauss), DIN EN 10107 ,made in Europe

core size : EI 96/50

lamination thickness /0.35mm

dimensions:119mmx100mmx81mm

weight :3Kgr per transformer

Winding method :layer wound with insulation insertion between every layer.

Winding Wire: Double coated Grade 2 enamelled copper wire made in Europe Wound in Precision Multi section winding, for reduced leakage inductance and high dielectric strength.

Mounting:End bells for Vertical placement

TECHNICAL FEATURES:

Primary Impedance: 5k

Secondary Impedance:4/8 Ω

ultralinear tap :50% ( or23% -33%-42% on request)

Primary Inductance Lp=20H @17Vrms/50hz

Leakage inductance :5.6mH

airgap set for : 80mA

Primary Dc resistance: 231 Ohm

Max Dc current :250mA

Maximum output power :20W

Frequency Response: 15Hz-45Khz -3dB

core material:High quality CRGO silicon steel M6 , DIN EN 10107 ,made in Europe

core size : EI 84/50

dimensions:82mmx75mmx87mm

weight :2.32Kgr per transformer

Designed for EL84-6BQ5-ECL86-ECL82-6V6 etc in triode/ultralinear mode or tubes with similar impedance.

Those audio transformers are ideal for building amplifier projects based on Spud philoshophy, providing detailed sound and microdynamics that small transformers are not capable of.

TECHNICAL FEATURES:

Primary Impedance: 5k Secondary

Impedance: 4/8/16 Ω

Ultralinear tap : 25% P

rimary Inductance Lp=35H @17Vrms/50hz Airgap

set for : 50mA Primary

Dc resistance: 240 Ohm

Max Dc current :133mA

Maximum output power : 8W

Frequency Response: 12Hz-46Khz -3dB   Test conditions/tube : Rsource =3k3, RLsec=16R

Core material: high quality M6 grain oriented silicon steel (19000Gauss), made in Europe.

Core size : EI75/30 Lamination thickness: 0.35mm

Dimensions:77mx60mmx65mm

Weight: 1.13Kgr per transformer

Winding Wire: Double coated Grade 2 enamelled copper wire Wound in Precision Multi section winding, for reduced leakage inductance and high dielectric strenght.

Mounting: Endbells suitable for vertical placement.

Designed for EL84-6BQ5-ECL86-ECL82-6V6 etc in triode/ultralinear mode or tubes with similar impedance.

Those audio transformers are ideal for building amplifier projects based on Spud philoshophy, providing detailed sound and microdynamics that small transformers are not capable of.

TECHNICAL FEATURES:

Primary Impedance: 3k5

Secondary Impedance: 4/8 Ω

Ultralinear tap : 25%

Primary Inductance Lp=35H @17Vrms/50hz

Airgap set for : 50mA

Primary Dc resistance: 224 Ohm

Max Dc current :133mA

Maximum output power : 8W

Frequency Response: 22Hz-46Khz -3dB at 1W output power

Test conditions/tube : El84 triode connected, B+= 300V Dc , Ik=36mA, cathode biased

Core material: high quality M6 grain oriented silicon steel (19000Gauss), made in Europe.

Core size : EI75/30 Lamination thickness: 0.35mm

Dimensions:77mx60mmx65mm Weight: 1.13Kgr per transformer

Winding Wire: Double coated Grade 2 enamelled copper wire Wound in Precision Multi section winding, for reduced leakage inductance and high dielectric strenght.

Mounting: Endbells suitable for vertical placement.

Single Ended 1K Output Transformer(Pair) 60W, ultralinear

Designed for EL34 6L6 KT88 6550 in triode or ultralinear mode

TECHNICAL FEATURES:

Primary Impedance: 1K

Secondary Impedance:8 Ω

ultralinear tap :42% ( or23% -33% on request)

airgap set for : 250mA

Primary DC resitance:76R

Max Dc current :380mA

Maximum output power :60W

Frequency Response: 5Hz-51Khz -3dB , (Rsource=330R)

core material:High quality CRGO silicon steel M6 , DIN EN 10107 ,made in Europe

core size : EI 120/60 ,lamination thickness /0.35mm

Weight:5.8Kgr per transformer

Winding method :layer wound with insulation insertion between every layer.

Winding Wire: Double coated Grade 2 enamelled copper wire made in Europe Wound in Precision Multi section winding, for reduced leakage inductance and high dielectric strength.

Mounting: drop through chassis

All transformers are tested in real working tube amplifiers before shipping.

Tube amplifier projects and related circuits use high voltage and contact with high voltages can cause serious injury or death. If you are not experienced with high voltage safety and working with high voltage, this is not the project for you and you act at your own risk and responsibility.

TECHNICAL FEATURES:

Primary Impedance: 4K3

Secondary Impedance:8 Ω

ultralinear tap :42% (

Primary Inductance Lp=30H @17Vrms/50hz 

Leakage inductance : 5,2mH

airgap set for : 120mA

Primary Dc resistance: 239 Ohm

Max Dc current :160mA

Maximum output power :25W

Frequency Response:

10Hz-38Khz -1dB (Rsource=1k5)

6,8Hz-44Khz -2dB

5,6Hz-50Khz-3dB

core material:High quality CRGO silicon steel M6 (19000Gauss), DIN EN 10107 ,made in Europe

core size : EI 96/50

lamination thickness /0.35mm

dimensions:119mmx100mmx81mm

weight :3Kgr per transformer

Winding method :layer wound with insulation insertion between every layer.

Winding Wire: Double coated Grade 2 enamelled copper wire made in Europe Wound in Precision Multi section winding, for reduced leakage inductance and high dielectric strength.

Mounting:End bells for Vertical placement

Single Ended 3k5 Output Transformer(Pair) 20W ultralinear

Designed for 2A3 or EL34 6L6 KT88 6550 in triode or ultralinear mode

TECHNICAL FEATURES:

Primary Impedance: 3k5

Secondary Impedance:4/8 Ω

ultralinear tap :50% ( or23% -33%-42% on request)

Primary Inductance Lp=20H @17Vrms/50hz

Leakage inductance :9mH

airgap set for : 80mA

Primary Dc resistance: 231 Ohm

Max Dc current :250mA

Maximum output power :20W

Frequency Response: 6.4Hz-45Khz -3dB

core material:High quality silicon steel made in Europe

Lamination thickness: 0.35mm

core size : EI 84/50

dimensions:112mmx90mmx70mm

weight :2.32Kgr per transformer

Winding Wire: Double coated Grade 2 enamelled copper wire made in Europe Wound in Precision Multi section winding, for reduced leakage inductance and high dielectric strength.

Mounting: vertical placement

Designed for EL34 6L6 KT88 6550 in triode or ultralinear mode

TECHNICAL FEATURES:

Primary Impedance: 5K

Secondary Impedance:8 Ω

Ultralinear tap :42% 

Primary Inductance Lp=39H @17Vrms/50hz measured with Idc=120mA

Leakage inductance : 10mH

Airgap set for : 120mA

Primary Dc resistance: 315 Ohm

Max Dc current :150mA

Maximum output power :25W

Frequency Response: 20Hz-22Khz -1dB (Rsource=5K) 14Hz-30Khz -2dB

Core material:High quality CRGO silicon steel M6 , DIN EN 10107 ,made in Europe

Core size : EI 96/50 ,lamination thickness /0.35mm

Dimensions:119mmx97mmx86mm

Weight :3Kgr per transformer

Winding method :layer wound with insulation insertion between every layer.

Winding Wire: Double coated Grade 2 enamelled copper wire made in Europe Wound in Precision Multi section winding, for reduced leakage inductance and high dielectric strength.

Mounting: horizontal placement