February 2, 2026
Description
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Restore your vintage bass rig or give your custom pedal the "SVT Growl" aesthetic!
This is a faithful 18mm replica of the control knobs found on the legendary Ampeg SVT Blackline series. Known for their rugged, industrial design, these knobs are a must-have for bassists and builders looking to capture that classic 70s look.
Why this design stands out:
Authentic Texture: Carefully modeled side knurling that provides the exact tactile feel of the original vintage hardware.
Low Profile (18mm): While the original SVT knobs are larger, this 18mm version is perfectly scaled for pedal enclosures (1590B/125B) and modern bass preamps without losing the "massive" look.
Pro-Level Indicator: Featuring a deep-recessed indicator line for maximum visibility on stage.
Diameter: 18mm.
Shaft Compatibility: Designed for standard 6.35mm (1/4") potentiometer shafts.
Mounting System: Integrated Set-Screw design for a secure, professional fit.
Hardware Needed: 1x M3 Nut + 1x M3 Set Screw (4mm or 5mm).
Insert the Nut: Slide the M3 Nut into the internal hexagonal slot.
Prepare the Screw: Thread the M3 Set Screw into the hole until it meets the nut.
Mounting: Place the knob on your 6.35mm shaft and tighten the screw until it locks firmly.
Resin (Best Result): Highly recommended for that smooth, injection-molded look.
FDM (PLA/PETG): Use a 0.2mm nozzle and 0.1mm layer height.
The "Pro" Look: Print in black and use white acrylic paint or a paint pen to fill the indicator line for high contrast.
Color Choice: Don't feel limited to black! Print or paint in neon, transparent, or metallic filaments to make your gear stand out.
Bring the heritage of the world’s most famous bass amp to your gear. Download and print today!
License:
Creative Commons — Attribution — Noncommercial — NoDerivatives
8
T Lab Custom
