Dynaco Mark III Power Transformer Upgrade.

This transformer is suitable for upgrading dynaco Mark III amplifiers or building a project based on this topology

TECHNICAL FEATURES:

Primary voltage:120Vac/60Hz OR 240Vac/50Hz (Please state the primary voltage suitable for your country)

Secondary voltages: 410V-0-55V-410V /200mA

                               6.3Vac/5A

                               5Vac/3A

Core size:EI120/40

Weight :4 Kgr

Dimensions: 125mmx100x101mm

TECHNICAL FEATURES:

Primary voltage:120Vac/60Hz OR 240Vac/50Hz (Please state the primary voltage suitable for your country)

Secondary voltages: 2x330Vac /20mA ct 10.9V/1.5A ( on request the transformer can be built with different fillament voltage)

Core size:EI75/25 wire leads length: 400mm

Weight : 1,09 Kgr

Dimensions: 66mmx81x75mm

Mounting: horizontal placement .

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.

Dynaco ST35 Power Transformer Upgrade.

This transformer is suitable for upgrading dynaco ST35 amplifier or building a project based on ST35 topology. Please note that the transformer is not a drop in replacement(Please see the dimensions in the photos).

The transformer is built in a bigger core to ensure cooler running and improved voltage regulation due to the lower winding resistance.

TECHNICAL FEATURES:

Primary voltage:120Vac/60Hz OR 240Vac/50Hz (Please state the primary voltage suitable for your country)

Secondary voltages: 2x330Vac /180mA DC ct 6.3Vac/2.5A 6.3Vac/2.5A

Core size:EI84/50

Wire leads length: 400mm

Weight : 2.36 Kgr

Dimensions: 75mmx121x84mm

Mounting: horizontal placement

Dynaco ST70 Power Transformer Upgrade.

This transformer is suitable for upgrading dynaco ST70 amplifier or building a project based on ST70 topology. Please note that the transformer is not a drop in replacement.

The transformer is built in a bigger core to ensure cooler running and improved voltage regulation due to the lower winding resistance.

TECHNICAL FEATURES:

Primary voltage:120Vac/60Hz OR 240Vac/50Hz (Please state the primary voltage suitable for your country)

Secondary voltages: 360V-0-55V-360V /300mA

                               6.3Vac/5A

                               6.3Vac/5A

                               5Vac/4A

Core size:EI120/60

Weight :6 Kgr

Dimensions: 120mmx100x100mm

Mounting Bolt pattern :80mmx100mm, M5 screw hole

Mounting: drop through chassis

This transformer is suitable for building projects based on tubes like EL34 6L6 EL84 KT88-KT120 300B etc in SE or PP mode.

TECHNICAL FEATURES:

Primary voltage:230/240Vac/50Hz OR 120Vac/60Hz (Please state the primary voltage suitable for your country) The transformer can be custom wound to different secondary voltages and add winding for negative bias

Secondary voltages:

    375-0-375Vac /300mA DC

    6.3Vac/3A

    6.3Vac/3A

    6.3Vac/3A

    5Vac/4A

Core size:EI120/50

Weight : 4.92Kgr

Dimensions: 120mmx100x90mm

Mounting: Drop through chassis placement. 

Τube 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.

Power transformer for: Fender® Blues Junior also for Blues Junior III.

The transformer is an upgrade version ,designed specially to withstand extreme working conditions and heat loads /current overloads typical in guitar amplifiers. The design is based on a bigger core size to ensure lower working temperature and also lower winding resistance(thicker magnet wire).

Please note that the transformer is NOT a drop in replacement and small modification to chassis must be made, take a look at the photo with the transformer mounted on chassis .

TECHNICAL FEATURES:

Primary voltage:230Vac/50Hz OR 120Vac/60Hz (Please state the primary voltage suitable for your country)

Secondary voltages:

   260Vac /200mA (red-red)

   6.3Vac/3A (green-green)

   20Vac/100mA (brown-brown)

Core size:EI84/40

Wire leads length: 400mm

Weight : 2.05 Kgr

Dimensions: 70mmx75x84mm

Mounting: horizontal placement, drop through chassis

TECHNICAL FEATURES:

Primary voltage: 240Vac/50Hz OR 120Vac/60Hz (Please state the primary voltage suitable for your country)

The transformer can be customized to you specs within the VA rating of the core

Secondary voltages:

360Vac /450mA

75-0-75Vac/150mA

6.3Vac/4A

6.3Vac/4A

6.3Vac/2A

12Vac/1.2A CT

Core size:EI120/60

Weight : 6.2Kgr

Dimensions: 120mmx105x140mm

Mounting: Vertical

Primary voltage: 240Vac/50Hz OR 120Vac/60Hz (Please state the primary voltage suitable for your country)

The transformer can be customized to you specs within the VA rating of the core

Secondary voltages: 0-235-250-265-280-295-315-330Vac /160mA

6.3Vac/4A CT

Core size:EI84/50

Weight :2.3Kgr

Dimensions: 82mmx75mmx87mm

Mounting: Vertical

The transformer can be used in tube amplifier projects    to unload the main power transformer or heaters chain. In preamplifiers ,the sonic benefits when powering the heaters from a separate transformer and not the one that supplies the high voltage , are extended .

TECHNICAL FEATURES:

primary voltage: 230/240Vac/50Hz OR120Vac/60Hz (Please state the primary voltage suitable for your country) The secondary voltages can be customized within the VA rating of the core

secondary Voltages:

6.3Vac/3A

6.3Vac/3A

6.3Vac/1.2A CT

Core size:EI75/40

weight: 1.5 per transformer

dimensions: 78mx93mmx63mm 

Winding Wire: Double coated Grade 2 enamelled copper wire made in Europe

core material: high quality , low loss silicon steel made in Europe