LL2762: Lundahl Interstage Transformer

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LL1630 is a line output transformer for tube amplifiers. The transformer is highly sectioned, and wound with a special low capacitance winding technique. This results in very good high frequency performance. The transformer has a special audio C-core of our own production

The LL2762 is a three-section dual coil C-core tube amplifier interstage transformer. The coil is wound using our low capacitance, high internal isolation technique with internal multilayer isolation foil where layer-to-layer signal voltage is big. Winding order minimises destructive capacitive energy build-up between primary and secondary sections.

The LL2762 is ONLY available for single-ended operation. (The air gap is adjusted during manufacture to suit)

  • 16mA Single-ended

(N.B. The purpose of the airgap is to accept the DC current of the output valve without saturating the core, leaving enough headroom for the sound signal)

There are further 3 versions depending on what C-core material you require.

  • Silicon-iron (STANDARD)
  • Amorphous-iron (AM)
  • Nanocrystalline (NC)

And a further 2 options depending on what wire you require.

  • Copper
  • Silver (Ag)

Turns ratio

  • 1 + 1  : 1 + 1

Overall size including pins - 75mm x 66mm x 51mm

STARTING PRICE (1 off)
£90.56 +vat +p&p

Non-Stock Item - Please allow 4-6 weeks for dispatch

For more information, please refer to the datasheet below. 

PDF datasheet
LL2762 datasheet210.49 KB
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