The LL1664 is the industry standard output transformer for medium to high power valve amplifier output stages, EL84, EL34, 4P1L and even 300b.
If you have any questions about this product or need some help with your design please contact us.
Most transformers are made to order and incur a 4-8 week winding time, we do stock some popular models in which case your order will be shipped immediately.
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