This Bach 36B (serial number 20191, dating to about 1976) is presented here as a historical archive listing for musicians and collectors interested in Bach’s versatile medium-large-bore design.
Built during the renowned Corporation-stamped period — often cited as one of Bach’s most consistent production eras — this 36B embodies the company’s vision for a truly all-around tenor trombone.
The instrument featured an 8-inch yellow-brass bell paired with a .525-bore standard-weight hand-slide designed for small-shank mouthpieces, plus a responsive rotary F-attachment.
This bore size sits between traditional .508-bore jazz horns and .547-bore symphonic tenors, offering a blend of projection, warmth, and agility.
At the time of sale, this horn retained all original parts and lacquer and had received a full shop service including chemical bath and mechanical inspection.
Both the valve and slide were in good playing order, and the instrument was free of dents or structural repairs.
The 36B is again finding favor with professional orchestra players and freelancers in 2025, especially for pops concerts, live-to-film performances (e.g., Star Wars, Harry Potter), and programs with pop or Broadway vocalists backed by traditional horn sections.
Players often report that the .525 bore can provide a more appropriate sound, quicker response, and less fatigue than a full .547 when facing multiple rehearsals and several consecutive performances.
Vincent Bach promoted the 36B as an “ideal all-around size,” and this remains true for many modern professionals.
What is the Bach 36B?
The 36B is Bach’s classic .525-bore F-attachment tenor trombone, bridging the gap between small-bore jazz horns and full symphonic tenors.
What does “Corporation Era” mean?
Instruments stamped “Vincent Bach Corp.” (mid-1960s – late-1970s) are often regarded as part of Bach’s golden-era output, valued for consistency and craftsmanship.
Why are more modern orchestra players returning to .525-bore instruments?
For pops programs, film-score performances, and crossover concerts with big-band-style horn sections, many professionals find that a .525-bore trombone offers the right tonal weight, more nimble response, and less physical effort than a .547 — particularly during weeks with intense rehearsal schedules and back-to-back performances.
What mouthpiece does the 36B use?
The 36B is designed for a small-shank mouthpiece, allowing players to pair it with equipment familiar from jazz or chamber settings while retaining the range and facility of the F-attachment.
Where can I explore more vintage Bach trombones?
🔎 Browse the Archive of Sold Instruments to see other historical Bach models.
Closing Note
This mid-1970s Bach 36B Corporation-Era tenor trombone has been sold and is presented here as a historical reference for players and collectors.
🔎 Browse our current trombone listings or 📞 contact us directly for information about similar models or upcoming inventory.
