✦ Historical Overview
This Conn 70H bass trombone was built in Elkhart, Indiana in 1952 during one of Conn’s most respected production periods. The 70H remains one of the classic American bass trombone designs and continues to hold a strong reputation among professional players, collectors, and vintage brass enthusiasts.
Like many early Conn bass trombones from this era, the instrument features a 9.5-inch yellow brass bell with tuning handled through the handslide rather than the bell section. This tuning-in-slide (T.I.S.) architecture became one of the defining characteristics of several legendary Conn orchestral bass trombone models and contributes significantly to the instrument’s resonance and response.
This example remained with a single owner for most of its life and survived in remarkably well-preserved condition. The bell and slide remain original, and the instrument shows no signs of major damage history. The valve section, slide tubes, and overall mechanical condition are exceptionally strong for an instrument now more than seventy years old.
Approximately forty years ago, the instrument received a professional refinish due to earlier lacquer wear and small cosmetic imperfections accumulated during normal use. The work appears to have been completed carefully, preserving the instrument’s overall integrity and visual presentation while allowing the horn to continue functioning as a serious professional instrument.
The original Remington leadpipe remains intact — an important detail for Conn enthusiasts who appreciate the distinctive response characteristics associated with these earlier Elkhart bass trombones.
📚 Interested in more historical Elkhart-era Conn trombones? Explore additional vintage Conn models in our Archive of Sold collection:
https://www.thebrass-exchange.com/archive-of-sold/conn
✦ Player Perspective
From a playing standpoint, this early 1950s Conn 70H represents the classic American orchestral bass trombone concept before the widespread adoption of double-valve systems.
The sound is broad, dark, and unmistakably “Conn” in character. The response remains centered and resonant throughout the instrument, with a rich tonal core that works exceptionally well in orchestral, large ensemble, and classic studio-style bass trombone settings.
The slide action on this particular example was excellent, aided by extremely clean inner tubes and careful long-term ownership. The rotor section also remained in outstanding mechanical condition, giving the instrument a remarkably refined and stable feel for a horn of this age.
Players seeking a professional-level single-valve bass trombone often gravitate toward instruments like the 70H because they maintain a unique combination of tonal breadth, efficiency, and flexibility that differs from many modern heavier bass trombone designs.
George Roberts famously performed on a Conn 70H for much of his career, and instruments like this help explain why the model became so respected among serious bass trombone players.
❓ Questions Trombone Players Often Ask
What makes the Conn 70H important historically?
The Conn 70H represents one of the classic American bass trombone designs from the Elkhart era. Its tuning-in-slide construction, large bell design, and characteristic Conn response helped define professional bass trombone playing for decades.
What is tuning-in-slide (T.I.S.) construction?
Rather than tuning at the bell section, the instrument tunes through the handslide assembly. Many players believe this contributes to the resonance and playing feel associated with classic Conn bass trombones.
Is a single-valve bass trombone still practical today?
Yes. Many professional and advanced players still prefer single-valve bass trombones for certain styles of playing, especially when seeking a lighter, more efficient response with traditional orchestral and studio character.
Why is the Remington leadpipe important?
Original Remington leadpipes are closely associated with vintage Conn trombone design and contribute to the distinctive playing characteristics many collectors and performers seek in early Elkhart instruments.
Did George Roberts really play a Conn 70H?
Yes. George Roberts, widely considered one of the most influential bass trombonists in history, performed on Conn 70H bass trombones for much of his career.
📸 Photography From Our Early Archive
These photographs come from the earlier years of The Brass Exchange and reflect a much different stage of our photography workflow and online archive development. During that period, the primary goal was simple: accurately document historically important instruments and preserve them as part of a growing brass archive for players and collectors.
Over time, our lighting methods, editing standards, image optimization, and presentation style evolved substantially. But these earlier images remain valuable because they capture authentic instruments during an earlier era of online brass collecting and documentation.
Pages like this now serve not only as references for rare instruments, but also as part of the long-term historical record surrounding professional vintage brass instruments and their preservation.
🔧 Availability & Archive Status
This Conn 70H bass trombone has been sold and is now preserved here as part of our historical archive of professional and vintage brass instruments. Archive pages like this continue to serve as educational resources for collectors, players, and musicians researching classic Elkhart-era Conn bass trombones.
🔎 Browse current trombones available now:
https://www.thebrass-exchange.com/trombones
📚 Explore additional vintage Conn instruments in our Archive of Sold collection:
https://www.thebrass-exchange.com/archive-of-sold/conn
✍️ Own a vintage Conn trombone or historical brass instrument? Contact us for valuation guidance, consignment opportunities, or trade-in discussion.