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Mains transformers

Lundahl manufactures a limited range of C-core mains transformers, primarily for tube amplifiers. These transformers are best used with bridge rectifier circuits (four diodes), but some transformers can also be used with full wave rectifier circuits. ? The hybrid power supply principle provides a bridge rectifier circuit using classical tube rectifier tubes in combination with modern diodes. The transformer primaries are connected in series for 210 ? 250V and in parallel for 105 ? 125V. Secondary voltages are calculated for 230V / 115V primary voltage. The secondary voltage listed are no-load voltage. Voltage drop because of load can be calculated from transformer copper resistance and load current. For optimal use, about 75% of power should be taken from secondary 1. In Lundahls mains transformer range, a small deliberate C-core air-gap is used to prevent from core saturation caused by any DC unbalance in the mains outlet.
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Lundahl LL1648 mains transformer for tube amplifiers
Lundahl LL1648 mains transformer for tube amplifiers
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234,06 €
(196,69 € excl. vat)
including 19% VAT., plus shipping
  • Must be ordered. Ready for shipment in 14 days
  • Shipping time: 15 - 16 workdays
  • C-core mains transformer
Lundahl LL1649 mains transformer for tube amplifiers
Lundahl LL1649 mains transformer for tube amplifiers
Order Now
234,06 €
(196,69 € excl. vat)
including 19% VAT., plus shipping
  • Must be ordered. Ready for shipment in 14 days
  • Shipping time: 15 - 16 workdays
  • C-core mains transformer
Lundahl LL1650 C-core mains transformer
Lundahl LL1650 C-core mains transformer
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Special price: 180,05 €
(151,30 € excl. vat)
Old price: 252,07 €
including 19% VAT., plus shipping
  • In stock!
  • Shipping time: 1 - 2 workdays
  • LL1650 is a 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.
Lundahl LL1651 C-core mains transformer
Lundahl LL1651 C-core mains transformer
Order Now
234,06 €
(196,69 € excl. vat)
including 19% VAT., plus shipping
  • Must be ordered. Ready for shipment in 14 days
  • Shipping time: 15 - 16 workdays
  • C-core mains transformer
Lundahl LL1665 C-core mains transformer
Lundahl LL1665 C-core mains transformer
Order Now
234,06 €
(196,69 € excl. vat)
including 19% VAT., plus shipping
  • Must be ordered. Ready for shipment in 14 days
  • Shipping time: 15 - 16 workdays
  • mains transformers for tube amplifiers 230V : 530V + 530V + (4 x 6.6V)
Lundahl LL1683 mains transformer for tube amplifiers
Lundahl LL1683 mains transformer for tube amplifiers
Order Now
234,06 €
(196,69 € excl. vat)
including 19% VAT., plus shipping
  • Must be ordered. Ready for shipment in 14 days
  • Shipping time: 15 - 16 workdays
  • C-core mains transformer
Lundahl LL2738 Tube Filament Current Mains Transformers
Lundahl LL2738 Tube Filament Current Mains Transformers
Order Now
234,06 €
(196,69 € excl. vat)
including 19% VAT., plus shipping
  • Must be ordered. Ready for shipment in 14 days
  • Shipping time: 15 - 16 workdays
  • LL2738 is a C-core (with small air gap) mains transformer for applications where a large number of tube filaments needs supply.
Lundahl LL2741 Mains Transformer for Tube Amplifiers
Lundahl LL2741 Mains Transformer for Tube Amplifiers
Order Now
234,06 €
(196,69 € excl. vat)
including 19% VAT., plus shipping
  • Must be ordered. Ready for shipment in 14 days
  • Shipping time: 15 - 16 workdays
  • C-core mains transformer
Lundahl LL2748 Mains Transformer for Tube Amplifier
Lundahl LL2748 Mains Transformer for Tube Amplifier
Order Now
Price on application
  • Made to order
  • C-core mains transformer
* All prices are final prices in EUR including the 19% valid value added tax/VAT.

 

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