The LL1673 and LL1638 are the industry standard HT chokes for valve amplififiers. The LL1673 is the higher inductace, lower current version of the LL1638.
Most transformers are made to order and incur a 3-5 week winding time, we do stock some popular models in which case your order will be shipped immediately.
If you have any questions about this product or need some help with your design please contact us.
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