Lundahl Tube amplifier output transformer, LL2768AM
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  • Lundahl Tube amplifier output transformer, LL2768AM

Lundahl Tube amplifier output transformer, LL2768AM

LL2768
359,04 € Без НДС
438.03 € с НДС для покупателей из ЕС

Lundahl Tube amplifier output transformer, LL2768AM

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Lundahl Tube amplifier output transformer, LL2768AM

The LL2768 is a high power tube output transformer primarily for low impedance high power tubes. The transformer is built up from two coils, each consisting of 5 sections. The core is a high quality grain oriented silicon steel C-core from our own production

  LL2768
Turns ratio (approx) 4 x 9.2 : 8 x 1
Static resistance of primary (all in series) 64Ohm
Static resistance of each secondary winding 0.4Ohm
(approx..)
Primary leakage inductance (all in series) To be measured
Max recommended primary DC current 430 mA
(heat dissipation 12W)
Max. primary signal voltage r.m.s. at 30 Hz Push-Pull Single End
(all in series) 530V 235V

Electrical characteristics
Primary Load Impedance, Max power and power loss.
  Sec. connection for 4/8/16 Ohm
(See next page)
  -/B/C B/C/D C/D/E
  Primary Load Impedance
(transformer copper resistance included)
LL2768 2.7 Ohm 1.2 kOhm 680 Ohm
  Power and Loss
Max. Power, P-P at 30 Hz 180W 360W 700W
Max. Power, S.E. at 30 Hz 35W 70W 140W

Primary DC Current Core Air-gap and Primary inductance
  LL2768/PP LL2768/200mA
Core Airgap 25 µ 340 µ
(delta/2)
Single end standing current for 0.9 Tesla   200mA
(recommended operating point)
Primary inductance H H

LL2768
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