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  1. Jonarobb, I think what you have there are home...

    Jonarobb, I think what you have there are home constructed versions of the Altec 614 cabinet, a smaller volume cab than the 612 which was frequently fitted with the 604 Duplex. You can check this...
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    Hi ivica, Thanks for your comments. Rare earth...

    Hi ivica,

    Thanks for your comments. Rare earth magnet structures are the norm these days, and have many advantages, but will not convey the same bragging rights as field coils to the truly...
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    Hi Bobby, You are on the right track and...

    Hi Bobby,

    You are on the right track and asking the right questions. A field coil can be designed to make use of most any supply field voltage. High voltage requires a field coil made of very fine...
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    Tiborkaba you have some treasures there. These...

    Tiborkaba you have some treasures there. These woofers were made by Lansing Manufacturing Company in Los Angeles in about 1938. The 415 was the standard woofer in the Lansing Shearer horn systems for...
  5. As best I can tell the crinkle paint appeared...

    As best I can tell the crinkle paint appeared along with the cast pots at the end of 1952. Earlier pots had been expensively machined and welded from pipe and plate stock.
  6. Congratulations on your amp, Bigsbyguy. That D130...

    Congratulations on your amp, Bigsbyguy. That D130 looks right to me, as JBL supplied them in this version from about November 1952 (first cast pot) until sometime in 1956 when the oval foilcal...
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    So sorry to say that I had not read this thread...

    So sorry to say that I had not read this thread and did not know what happened to Ken Pachkowsky until today. Ryan I am very sorry for your loss. I knew Ken when he lived in the Palm Springs area...
  8. I think that Harman should manufacture everything...

    I think that Harman should manufacture everything in Lesotho. Where's that you ask? Lesotho is a tiny country completely surrounded by South Africa. I've been buying these amazing, very well crafted...
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    Wow AudioFile, thanks for the reminder! I used to...

    Wow AudioFile, thanks for the reminder! I used to follow links to this guy from a resonator guitar forum that is now long gone. Check out "Jungle Lullaby" and "Ragged and Dirty." He's authentic, or...
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    So nice to see you posting, Tom. I hope that you...

    So nice to see you posting, Tom. I hope that you are healthy, wealthy and wise, and as feisty as ever!
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    Sticky: Hello Ben, Thank you for your useful additions...

    Hello Ben,

    Thank you for your useful additions to the registry. IMO these components can be repurposed to greater sonic effect, as the N2600 runs the 075 much too low, causing sonic hell. I...
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    Phubbard you have some genuine "Magic Magnet"...

    Phubbard you have some genuine "Magic Magnet" Cinaudagraphs, late 1930s to early 1940s. With the long cables and utility boxes, they would have been originally supplied with film projector(s). If...
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    Grumpy, almost every story that I have heard over...

    Grumpy, almost every story that I have heard over the past twenty five years that mentioned RCA radial horn enclosures has involved Mr. Alan Sides in some way. As the story goes, he once had a...
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    To me the diaphragm to beat is still the...

    To me the diaphragm to beat is still the 1930s/40s Lansing 801. Aluminum (probably 2 mil) spun diaphragm, half roll compliance (no tangents) with round aluminum wire voice coil. Horribly rare now...
  15. As I understand it, Kittleson took his life as a...

    As I understand it, Kittleson took his life as a result of major losses in the Madoff debacle. I do not have more detailed information.
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    Hi toddalin, no I didn't mean to imply that your...

    Hi toddalin, no I didn't mean to imply that your diaphragm is an early one. Seeing it just put me in a historical mood.

    More trivia: the D175 diaphragm is very similar to the Altec 802 diaphragm...
  17. Charles Kittleson was a truly fevered audiophile,...

    Charles Kittleson was a truly fevered audiophile, though secretly a tortured soul who suffered an apparently fatal run-in with Bernie Madoff's criminal enterprise. He tried to promote local audio...
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    The only failure we ever suffered to any of our...

    The only failure we ever suffered to any of our Cogent field coil compression drivers occurred when a customer tried some lame-azz, supposedly great trendy solid state amps with our bass horn drivers...
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    I dunno ducatista. I would try #26 copper and try...

    I dunno ducatista. I would try #26 copper and try to give it a fair audition, and perhaps #28 which I have used with great success in the past. This ultra low impedance thing nowadays is very...
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    So long apparently to another great company. I...

    So long apparently to another great company. I had begun calling them "T-annoy" in recent years but that was not intended to denigrate their decades-long history of really tremendous products.
  21. LOL! Utah is the company that drove Jim Lansing...

    LOL! Utah is the company that drove Jim Lansing out of Salt Lake City to Los Angeles in 1927, as Utah had captured nearly all the local business. As horn fanatic pointed out, this is a reed armature...
  22. Zakkbr these are likely aftermarket or homebrew...

    Zakkbr these are likely aftermarket or homebrew cabs stuffed with mismatched but individually valuable components. The N2400 Xovers are nasty things because they were intended to run 075 tweeters...
  23. I have no idea of the production numbers. I can...

    I have no idea of the production numbers. I can tell you that the industrial design (appearance) was the work of Arnold Wolf, consultant to JBL for years and (later) JBL President for a while. Search...
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    Just a tiny bit of trivia... this diaphragm is...

    Just a tiny bit of trivia... this diaphragm is the lineal descendant of Jim Lansing's D175 diaphragm of 1947. Examples of the early ones all show a tiny flaw from the two part mold. There is a tiny...
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    For those who wish to reproduce the 612... the...

    For those who wish to reproduce the 612... the 1960s hammertone silver Altec version is almost identical dimension wise, though the outer cabinet edges are usually rounded over. They also offer much...
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