LL2793NC: Lundahl Line Output Transformer

LL2793NC is a nanocrystalline C-core line output transformer for tube amplifiers. The transformer is available with different core air gap for PP or SE drives. The transformer high impedance primaries are wound with a unique low capacitance winding technique to achieve the best high-frequency performance. The LL2793NCPP is assembled with a small core air gap to allow for some DC current unbalance. For the S.E. versions of the LL2793NC, the core air gap is chosen such that the denoted DC current (12mA for a LL2793NC/12mA) generates a no signal core flux density of 0.55 Tesla when used with all primaries in series. This leaves a flux density swing of about 0.45 T for the signal.

The LL2793NC is available in 2 versions to suit the circuit topology. (The air-gap is adjusted during manufacture to suit)

• Push-pull
• 12mA 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)

 C-core material.

• Nanocrystalline (NC)

Turns ratio

• 4 + 4 : 1 + 1 + 1 + 1

Overall size including pins - 91mm x 61mm x 55mm

PRICE (1 off)
£334.59 +vat +p&p

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

For more information, please refer to the datasheet below.