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Lundahl Amorphous Core Tube amplifier output transformer, LL2768AM

LL2768AM

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Lundahl Amorphous Core Tube amplifier output transformer, LL2768AM

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848,27 €

695,30 € Без НДС***

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Amorphous Core Tube Amplifier Output Transformer LL2768AM

The LL2768AM 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 winding0.4Ohm
(approx..)
Primary leakage inductance (all in series)To be measured
Max recommended primary DC current430 mA
(heat dissipation 12W)
Max. primary signal voltage r.m.s. at 30 HzPush-PullSingle End
(all in series)530V235V

Electrical characteristics
Primary Load Impedance, Max power and power loss.
 Sec. connection for 4/8/16 Ohm
(See next page)
 -/B/CB/C/DC/D/E
 Primary Load Impedance
(transformer copper resistance included)
LL27682.7 Ohm1.2 kOhm680 Ohm
 Power and Loss
Max. Power, P-P at 30 Hz180W360W700W
Max. Power, S.E. at 30 Hz35W70W140W

Primary DC CurrentCore Air-gap and Primary inductance
 LL2768/PPLL2768/200mA
Core Airgap25 µ340 µ
(delta/2)
Single end standing current for 0.9 Tesla 200mA
(recommended operating point)
Primary inductanceHH

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Lundahl Amorphous Core Tube amplifier output transformer, LL2768AM

Lundahl Amorphous Core Tube amplifier output transformer, LL2768AM

Lundahl Amorphous Core Tube amplifier output transformer, LL2768AM