1958 Fender Tremolux
- Circuit: 5F9 (late tweed “big box” narrow-panel version)
- Production Year: 1958
- Power Output: Approximately 15–18 watts
- Configuration: 1×12″ combo amplifier
- Speaker: 1963 replacement Jensen P12Q alnico 12-inch speaker (the earlier version of this was the original one for this amp)
- Power Tubes: 2 × 6V6GT
- Preamp Tubes: Typically 1 × 12AY7 and 2 × 12AX7
- Rectifier Tube: 5U4GB
- Bias Type: Fixed bias
- Channels: 2 channels (Instrument and Microphone)
- Inputs: 4 inputs total
- Controls:
- Mic Volume
- Instrument Volume
- Tone
- Speed
- Intensity (Tremolo Depth)
- Cabinet Style: Narrow-panel tweed pine cabinet
- Covering: Lacquered tweed with oxblood grille cloth
- Dimensions: Approximately 22″ W × 20″ H × 10″ D
- Weight: Approximately 16–18 kg (35–40 lbs) depending on speaker and transformers
- Effect: Tube-driven bias tremolo (the Tremolux was Fender’s first amp with built-in tremolo)
- Rectification: Tube rectified for softer attack and compression
- Tone Character: Warm cleans, rich mids, smooth compression, earlier breakup than larger tweeds, with more headroom and bass response than a 5E3 Deluxe
The 1958 Tremolux sits in an interesting space between a tweed Deluxe and larger Fender amps. The 5E9-A version retains much of the touch sensitivity and compression of a Deluxe, but with a larger cabinet, stronger low end, improved headroom, and one of Fender’s best early tremolo circuits.










