• LL1688 New big OPT
• LL1689 New tube line output
• LL1922 New line input 1:8
• LL1620cfb LL1620 for cathode feedback
• LL1587 Data sheet update.

December 2003

• LL1684 New low impedance isolation transformer
• LL9202 High impedance OPT
• LL1572_LL1573_LL1589 Digital audio transformers, data sheet update
• LL1679 New Tube line output
• LL1682 Data sheet update

April 2003

• LL1588
• LL1660S
• LL1572 (galvanic isolation), LL1573 (splitting, 2 outputs), LL1589 (splitting, 3 outputs)
• LL1683
• LL1685
• Sometimes you need to more easily switch between different output impedances on our output transformers LL1620, LL1623 and LL1627. This sheet suggests two different wiring alternatives where the OPT secondary is reconnected using only three jumpers.
• LL1544A
  
• LL1545A
  
• LL1660
  
• LL1671
  
• LL7901 and LL7902
  
• LL7903
  
• LL1630 (Recommended max current added).
  
• LL1635 (Recommended max current added).
  
• LL1682 (Cut-and-paste errors corrected).
  
• LL1663 (Connection for UL added).
  
• LL1664 (Connection for UL added).