NEW! Altec 604 Duplex Speakers and Related - compiled by John Klett
Jan/Feb 2010 - not quite done... but hopefully more than you want to know about various "604" Duplex Speakers, includes information on MOST versions since 1944, some speaker systems based on 604's and the currently made direct descendents from Great Plains Audio and Iconic.
Delay in Large Format Digital Music Consoles - by John Klett
November 1999
Neve Transformer Windings Info - Web Version by John Klett
November 1999
Neve 80 Series Modules - The 1081 Mic Pre / EQ - by John Klett
October 1995 with notes added August 1997
Passive Loss "Voltage" Summing Cheat Sheet - by John Klett
mid-1995 or so
Listing of API Modules and some Part Numbers - compiled by John Klett
late 1980's - fairly complete listing of api model and part numbers up to the api "Discrete" series consoles - this list is sometimes updated as new info is uncovered
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and just for the heck of it A GOOGLE Search for the Hawaiian Pups