✦ Historical Perspective & Overview
The Bach 36 Mt. Vernon era trombone remains one of the most respected large bore tenor trombone designs produced during the Mount Vernon production period (1953–1963). Instruments from this era are widely admired for their craftsmanship, tonal balance, and versatility.
This particular instrument features an interesting modification: the trombone has been fitted with a Brasslab O.E. Thayer axial-flow valve system, creating a unique blend of vintage Bach design and modern valve performance. The conversion allows the instrument to retain the classic tonal character of the Bach 36 while providing the open feel many players associate with axial-flow valves.
The bell section retains approximately 90% of its original lacquer, with small areas of finish loss primarily associated with the valve conversion work. Importantly, the bell itself shows no evidence of creases or structural damage, preserving the integrity of the original Mount Vernon bell.
The slide on this instrument was especially strong, with excellent alignment and smooth response following a full professional setup. Players familiar with the Bach 36 often appreciate how comfortably the instrument responds across the entire register, whether used for traditional orchestral playing or more modern performance approaches.
Overall, the instrument represents a fascinating example of how vintage Bach trombones are sometimes adapted by professional players seeking modern valve performance while preserving the tonal character of the original bell section.
📸 Photography From Our Early Archive
Images shown reflect the instrument at the time it passed through The Brass Exchange.
✦ Instrument Specifications (Reference)
Maker: Vincent Bach
Model: Stradivarius Model 36
Production Era: Mount Vernon, New York (1953–1963)
Configuration: Tenor trombone with axial-flow valve conversion
Valve System: Brasslab O.E. Thayer
Finish: Mostly original lacquer on bell section
Slide: Professional large bore handslide
✦ Further Reading
The Bach 36 has long been considered one of the most versatile large bore tenor trombones in the Bach lineup. Many players value the instrument for its balanced tonal profile and adaptability across orchestral, chamber, and solo settings.
Instruments from the Mount Vernon production period are especially respected for their consistency of build and tonal character. Many professional players actively seek instruments from this era.
Custom valve conversions—such as the Brasslab O.E. Thayer system installed on this instrument—represent one way players have adapted vintage instruments to modern playing preferences while preserving the original bell and slide components.
Questions Trombone Players Often Ask
What is the Bach 36 trombone known for?
The Bach 36 is a large bore tenor trombone valued for its balanced tone and versatility. It has been widely used in orchestral, chamber, and solo performance settings.
Why are Mt Vernon Bach trombones desirable?
Instruments from the Mount Vernon era are often valued for their craftsmanship and tonal characteristics. Many musicians consider them among the most consistent Bach instruments ever produced.
What is a Thayer valve conversion?
A Thayer valve conversion replaces the original rotary valve with an axial-flow valve design, which many players feel provides a more open airflow and responsive feel.
Who was Brasslab and what is the O.E. Thayer valve system?
Brasslab was a specialized brass instrument workshop located in Brooklyn, New York, operated by master craftsman Chuck McAlexander. The shop became known among professional brass players for high-quality custom modifications, including the installation of O.E. Thayer axial-flow valve systems on trombones.
Over the years, The Brass Exchange has encountered many instruments modified by Brasslab, including numerous trombones featuring Thayer valve conversions and other custom work. These modifications were often commissioned by professional players seeking the tonal character of a vintage bell section combined with the more open airflow and response associated with axial-flow valve designs.
Instruments modified by Brasslab remain interesting reference pieces because they represent a period when many players experimented with adapting classic instruments to modern valve systems.
📌 Archive Reference & Next Steps
This Bach 36 Mt Vernon trombone with Brasslab Thayer valve has been sold and is preserved here as part of The Brass Exchange Archive of Sold instruments, where it serves as a historical reference for players and collectors researching vintage Bach trombones.
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🔧 Availability & Archive Status
Archive of Sold pages are maintained as historical references. Instruments shown here are no longer available for purchase but remain documented as part of our growing archive of vintage brass instruments.
Current inventory is shown on active listings. If you are researching a similar instrument or considering selling one, contact The Brass Exchange for assistance or valuation. 📣
