LL2769: Lundahl Output Transformer

The Lundahl LL2769 C-core output transformers for tube amplifiers is for push-pull usage only.  With a primary impedance of 4K7 with secondary impedances of 5R or 8R depending on how you wire them up.

The transformers are highly sectioned with harmonically sized sections, which results in a minimum leakage inductance. Combined with a low capacitance coil winding technique, this results in a wide frequency range. The transformers have a special audio C-core of our Lundhal`s production, which is gapped for the desired DC current. This would depend on the current draw of the output valves. The transformers are of an open frame type and are suitable for mounting inside an amplifier housing.

The LL2769 is only available in one version.

• Push-Pull

(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)

The constructor can adjust the following primary and secondary impedances depending on how the winding sections of the transformers are wired together via the exposed solder pins.

Primary impedance: Secondary impedance

• 4K7: 5R or 8R
• 4K7: 5R and 8R (switchable)

As featured in the ELEKIT TU-8340VK 

Overall dimensions including pins - 115mm x 87mm x 77mm

PRICE (1 off)
£191.33 +vat +p&p

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