This is a vintage beauty. Just got fully serviced, all new Caps and New rectifier tube. Three prong cord added and internal fuse added and placed before the switch for electrical safety. Sounds amazing and is in good shape for it's age. Comes with 1960s Jensen Alnico speaker, might not be original but chimes for days.

The Harmony H303C is a compact, low-wattage vintage tube combo amplifier manufactured in the 1950s and 1960s. Known for its simple, stripped-down design, it is a favorite among home players and studio musicians seeking authentic vintage grit and natural tube overdrive.

Key Specs & Features

• Power Output: Typically ranges between 3 to 8 watts depending on the exact year and revision.
• Tube Complement: Features a three-tube configuration consisting of a 35W4 rectifier, 50C5 power tube, and 12AU6 preamp tube.
• Speaker: Originally equipped with a 6-inch vintage Jensen speaker.
• Controls: Extremely minimal. Features a single volume knob that doubles as the on/off switch.
• Inputs: Includes 3 inputs

Tone & Use Cases

• Overdrive & Grit: If you are looking for clean headroom, this is not the amp for you. However, it truly shines at pushing early, smooth harmonic breakup and distortion.
• Studio & Practice: At low level, it is clean and shiny, the Jensen gives it that vintage chime. Because it relies on low wattage, you can crank the volume for a dirty, overdriven tone at bedroom or recording levels.
• Pedal Platform: It takes boost and overdrive pedals very well to enhance its natural tube compression.