WebApr 23, 2012 · #1 The design for this amp started as a scrapbox amp. A lot of ideas and sources came together in its design. The primary factor was actually two torroid transformers that didn't have a use. They were 120:14v with single primaries and dual secondaries, which are for the most part useless for tubes. http://quarter-wave.com/

An Old Horn Speaker Design Home Theater Forum and Systems

http://fredt300b.smugmug.com/Hobbies/Building-the-Voigt-Pipes/147575_8cMTmX/5434769_kK5Bmqq WebDec 9, 2012 · Some older age members may well remember the Voight Horn tapered quarter wave pipe ( TQWP) also known as an exponential horn.. which was originally designed by Voight in the 1930's! The principal was good then and still applies today.. metis club

Quarter Wavelength Loudspeaker Design

WebThe tapered pipe, with its low cost and construction ease, should be a contender in the enclosure race. It does require a bit more tinkering with damping material than a simple box, but challenge is part of the game. The damped pipe has several advantages over the bare pipe, including one that might not be obvious. WebThe enclosure is a Tapered Quarter-Wave Pipe (TQWP), also known as a Voigt Pipe. According to Wikipedia, a TQWP combines characteristics of transmission line, ported and horn enclosure designs. As the name implies, the TQWP uses a long, tapered tube, much like an inverted transmission line. The lower part of the tube acts like a horn, while WebOct 10, 2010 · The enclosure is a Tapered Quarter-Wave Pipe (TQWP), also known as a Voigt Pipe. According to Wikipedia, a TQWP combines characteristics of transmission line, ported and horn enclosure designs. As the name implies, the TQWP uses a long, tapered tube, much like an inverted transmission line. The lower part of the tube acts like a horn, … metis civil service