Title: Mellophone
Content:  The Holton company manufactured mellophoniums with a trumpet like lead pipe and valve assembly with the rest being comparable to a mellophonium.
Title: Mellophone
Content:  The Vincent Bach Corporation also produced a mellophonium, with the shape of the tubing more reminiscent of the cornet.
Title: Mellophone
Content:  bell points to the rear left of the player. It was used as an alto voice both outdoors and indoors by community and school bands in place of the French horn. The manufacture of these instruments declined significantly in the mid-twentieth century, and they are rarely in use today. Mellophone bugles keyed in G were manufactured for American drum and bugle corps from approximately the 1950s until around 2000 when Drum Corps International changed the rules to allow brass instruments in any key. Modern marching mellophones are more directly related to bugle-horns such as the flugelhorn, euphonium, and tuba. Their tube profile is likewise more conical than the trumpet or trombone.
Title: Mellotron
Content:  Alternative versions of the Mellotron were manufactured by competitors in the early to mid-1970s. The Mattel Optigan was a toy keyboard designed to be used in the home, which played back sounds using optical discs. This was followed by the Vako Orchestron in 1975, which used a more professional-sounding version of the same technology. It was popularised by Patrick Moraz.
Title: Mellophone
Content:  The F. E. Olds company manufactured mellophoniums with the same wrap as the Vincent Bach Corporation design.
Title: Marching brass
Content:  The mellophone bugle was first instroduced in the mid 1960s. These instruments were based on the design of the Conn Mellophonium as used by the Stan Kenton Orchestra. Eventually the wrap of the mellophone was compacted more into a soprano shape, with accommodations made for the much larger bell. The mellophone quickly became a popular alto voice due to its tone quality and ease of playing, especially compared to the French horn bugle. Mellophones were often featured in highly talented corps as voices that often soared above soprano parts at large impact points. The mellophone bugle is still manufactured today in a three valve configuration, and by special order in a two valve configuration for The Commandant's Own. Bore size is typically between .468"-.470"
Title: Mellophone
Content:  The present-day mellophone has three valves, operated with the right hand (1- and 2- valve mellophone bugles have been used in the past). Mellophone fingerings are the same as the trumpet. It is typically pitched lower, in the key of F or E. The overtone series of the F mellophone is an octave above that of the F horn. The tubing length of a mellophone is the same as that of the F-alto (high) single horn or the F-alto (high) branch of a triple horn or double-descant horn. The direction of the bell as well as the much-reduced amount of tubing (compared to a French horn) make the mellophone look like a large trumpet. The mellophone uses the same mouthpiece as the alto (tenor) horn, which is in 
Title: Mellotron
Content: M4000D (2010) – a single-manual digital product that does not feature tapes. Made at the Mellotron factory in Stockholm. ; Electro-Harmonix MEL9 Tape Replay Machine (2016) – simulator pedal 
Title: Mellotron
Content:  financial and trademark dispute through a US distribution agreement, the Mellotron name was acquired by American-based Sound Sales. Streetly-manufactured instruments after 1976 were sold under the name Novatron. The American Mellotron distributor, Sound Sales, produced their own Mellotron model, the 4-Track, in the early 1980s. At the same time Streetly Electronics produced a road-cased version of the 400 – the T550 Novatron. By the mid-1980s, both Sound Sales and Streetly Electronics suffered severe financial setbacks, losing their market to synthesizers and solid-state electronic samplers, which rendered the Mellotron essentially obsolete. The company folded in 1986, and Les Bradley threw most of the manufacturing 
Title: Mellophone
Content:  The mellophone is a brass instrument typically pitched in the key of F, though models in B, E, C, and G (as a bugle) have also historically existed. It has a conical bore, like that of the euphonium and flugelhorn. The mellophone is used as the middle-voiced brass instrument in marching bands and drum and bugle corps in place of French horns, and can also be used to play French horn parts in concert bands and orchestras. These instruments are used instead of French horns for marching because their bells face forward instead of to the back (or to the side), as dissipation of the sound becomes a concern in the open-air environment of marching. Tuning is done solely by adjusting the tuning slide, unlike the French horn where the pitch is affected by the hand position in the bell. Fingerings for the mellophone are the same as fingerings for the trumpet, alto (tenor) horn, and most valved brass instruments. Owing to its use primarily outside concert music, there is little solo literature for the mellophone, other than that used within drum and bugle corps.

Question: Verify the following claims with "True" or "False": I read that Alliant Techsystems does not produce the Mellophone.
Answer: True