Hand-built tube amplifiers for guitar and bass built to customer specification, plus repair and restoration of vintage amps.
Tube WorkShop GmbH
Hoppenstr. 15, 74211 Leingarten, DeutschlandNew on Amplifa
About Tube WorkShop
Tube WorkShop GmbH, based in Leingarten (Baden-Württemberg), builds hand-made tube amplifiers for guitar and bass to customer specification. Behind the company is Mario Gebhardt, an electrical engineer with 20 years of professional experience as head of R&D and sound expert at a leading German audio manufacturer. The product range includes Custom-Built Amps, the 2864-/2864-S series (14 W, Class A/B), the Lulis Signature (50 W, 2x EL34), the Single Six Combo (6 W, Single Ended Class A), the Cali Sunset (18 W), the Cali Sunrise (40 W) and the BassBoy (50/30 W) for studios and smaller stages. Cabinets are made from solid 12-mm birch multiplex, front panels from matte anodized aluminum. The company also offers repairs to manufacturer standards or vintage-correct, restorations of vintage amplifiers including complete electronics rebuilds, as well as guitar amp conversions of historic hi-fi and PA amplifiers. Sales are handled internationally via the online shop.
- Site
- Leingarten
- Processes
- Hand-built tube amplifiers (guitar/bass amps) to customer specification, Custom-built amps to customer specification, Amp repairs (tube technology) to manufacturer standards or vintage-correct, Restoration of vintage tube amplifiers (including complete electronics rebuild and new cabinets), Guitar amp conversion (conversion of historic hi-fi/PA amplifiers into guitar amplifiers), Anodizing of aluminum front panels (matte), Custom-built tube amplifiers to customer specification, Repairs of tube amplifiers
- Materials
- Birch multiplex 12 mm, Aluminum (matte anodized)
- Industries
- Musical instruments/Audio, Guitar and bass amplifiers, Studio and stage equipment
- 01
Consultation and cost estimate
- 02
Engineering/circuit design
- 03
Cabinet construction (birch multiplex)
- 04
Electronics assembly (tube technology)
- 05
Service and tuning
Materials & Processes
Birch multiplex 12 mm
Solid cabinet construction for combo and stack amplifiers with a resonant sound characteristic.
Aluminum (matte anodized)
Front panels of the 2864-S series in Silver or Stealth finish.
Locations
Leingarten
DEWorkshop and sales
- Lot size
- One-off production (Custom Built)
- Materials
- Birch multiplex, aluminum
Components & Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Hand-built tube amplifiers (guitar/bass amps) to customer specificationAssembly | – | – | – | 1 unit (Custom Built) | Birch multiplex (12 mm cabinet), Aluminum (matte anodized front panel) |
| Custom-built amps to customer specificationEngineering | – | – | – | – | – |
| Amp repairs (tube technology) to manufacturer standards or vintage-correctAssembly | – | – | – | – | – |
| Restoration of vintage tube amplifiers (including complete electronics rebuild and new cabinets)Assembly | – | – | – | – | – |
| Guitar amp conversion (conversion of historic hi-fi/PA amplifiers into guitar amplifiers)Engineering | – | – | – | – | – |
| Anodizing of aluminum front panels (matte)Surface | – | – | – | – | Aluminum |
Additional services
Reference customers
History
- ca. 2020
Restoration of a Philips hi-fi amplifier 2864 (1940s) and conversion for electric guitar – the blueprint for the first TWS amplifier.
- 2021
Purchase of a 1979 Fender Vibrolux Reverb.
- 2024
Meeting with guitarist Rudi Beinroth at the Crossroads Festival; restoration of the Vibrolux Reverb for him.