Lundahl Tube amplifier output transformer, LL2769-PP
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  • Lundahl Tube amplifier output transformer, LL2769-PP

Lundahl Tube amplifier output transformer, LL2769-PP

LL2769-PP
€223.48 Tax excluded
272.65 € tax incl. for EU buyers

Lundahl Tube amplifier output transformer, LL2769-PP

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Lundahl Tube amplifier output transformer, LL2769-PP

Tube Amplifier Output Transformer LL2769

4.7k : 5Ohm and 4.7k : 8Ohm

The LL2769 is a tube output transformer primarily for tubes like EL34, KT88, KT150. 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.

 

LL2769

Turns ratio(approx)

4 x30 : 2 x(4+2 +1)

Static resistance of primary windings

4-2 and 6-8/3-1 and 5-7

50 Ohm /58 Ohm

Static resistance of secondary windings

21-31 and 35-15/32-33 and 37-37/24-34 and 38-18

0.7 / 1.4 Ohm/ 0.3Ohm

Primary leakage inductance(all in series)

To be measured

Max recommended primary heating DC current

(heat dissipation 7W)

180mA

Max.primary signal voltage r.m.s. at 30Hz( all in series)

Push-Pull

690V

Single End

305V

 

Primary DC Current Core Air-gap and Primary inductance
  LL2769/PP
Core Airgap 25 µ
(delta/2)
Single end standing current for 0.9 Tesla  
(recommended operating point)
Primary inductance 160H
LL2769-PP
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