Tube Amp Fiberboard Rectifier Bias W/ Pot - Fender Princeton/Deluxe/Super Reverb

Fender Tube Amp Rectifier Bias Board with Trim Pot – Princeton / Deluxe / Super Reverb

This custom bias board is designed for Princeton Reverb and similar Fender-style tube amps. The eyelet layout allows installation of a bias trim pot, making bias adjustments easier while maintaining a clean vintage-style installation.

No need to drill your vintage chassis or use silicone. This board allows a reversible and tidy upgrade that preserves the vintage look of the amplifier.

• Fits tube rectifier Fender amps including:
  - Princeton Reverb
  - Deluxe Reverb
  - Vibrolux Reverb
  - Super Reverb
  - And similar builds

• Dimensions: 3.25” × 1.5”  
• Mounting holes spaced 2.75” on center  
• Precision-cut vulcanized fiberboard  
• High-quality plated brass eyelets  
• Includes insulator board

Note: Please verify mounting hole spacing will fit your chassis. Mounting holes can be omitted upon request.

Custom layouts and full eyelet boards are also available. Message me if you need a specific configuration.

Perfect for vintage Fender amp restoration or DIY tube amp projects. Check out other listings for additional vintage tube, electronic, and musical equipment parts.