John E Karlson,
The Karlson Speaker Enclosure (Scans: p 1
2 3 4 5 6)
In Radio & Television News, January 1954
A New Approach in Loudspeaker Enclosures (Scans: p 1 2
3 4
5 6)
In Audio Engineering, september 1952
Karlson Ultra-Fidelity article (Scans: p 1 2 3 4 5 6 7 8 )
The Karlson acoustic transducer for HI-FI and music (Scans: p 1 2 3 4 5)
In Popular Mechanics, july 1958
Karlson,
The X-15 ad
The Rocket ad
Radio & TV News Ads
1-1954 Cover
3-1954
8-1955
11-1955
6-1956
4-1957
10-1957
2-1959
Karlson ad from 1969 Burnstein-Applebee
catalogue
Karlson,
Klam Info (scans p 1 2 3 4)
Port modification sheet (scan)
Kit assembly info (scan)
Flyer (scans 1 2)
Newspaper article
Profile article about John Karlson (scan)
Article about Jet Nozzle (scan)
Bob Ledbetter 15 in. brace modification (scans p1 2 3)
Bob's autograph on a pricelist (scan)
Wayne Green (Karlson)
Sales article/advertisement (scan)
Ernst Georg Beck,
Der K-Kopler (German) (English translation)
Matt Hennessy,
Enclosure types
LEECH,
'Sound Laser' advertisement (scan 12
3 4)
Martin C. Poppe,
The K-Coupler, A New Acoustical-Impedance Transformer (Scans: p 1 2 3 4 5) (PDF)
In IEEE Transactions on Audio and Electroacoustics, december 1966
Raymond H. Bates,
A Tuned-Pipe Enclosure for Bass Enhancement (Scans: p 1 2 3)
In Audio, may 1955
Norman C Fulmer,
A Corner Labyrinth Transducer (Scans: p 1 2
3 4)
In Radio & Television News
Paul Klipsch,
Frequency measurement of 'Polyresonant 4-cavity box' (scan)
Some info on resonant air couplers and Karlson enclosure origin
Karlson galleria
Fred Ireson's Karlson projects
photos
David Ortega's Karlson
Dipole project photos
Al Stemen sent these pics of
his X-15's
