Bugera 1960 Infinium is a 150-watt tube amplifier head designed as a modern, feature-rich clone of the classic Marshall 1959 "Plexi" Super Lead. While it offers professional-grade features like automatic tube biasing and parallel/cascade channel switching, users often seek out schematics to address common structural "cracks" or electronic failures associated with its budget-oriented construction. Schematic & Technical Design
Fuse Failures: Internal fuses may blow if all four tubes are installed but one is faulty, sometimes only allowing the amp to run on two tubes until the issue is resolved. bugera 1960 infinium schematic cracked
Disclaimer: Tube amplifiers contain lethal voltages (400V+). Even when unplugged, filter capacitors can hold a lethal charge. Do not attempt repairs unless you are familiar with high-voltage safety procedures. Bugera 1960 Infinium is a 150-watt tube amplifier
Official schematics are rarely hosted on the Bugera website. However, the community often shares these documents through: Disclaimer: Tube amplifiers contain lethal voltages (400V+)
Are you looking to perform a specific repair or modification on your 1960 Infinium?
The Bugera 1960 Infinium schematic reveals a complex, yet elegantly designed circuit. The amplifier can be divided into several key sections: the input stage, tone stack, gain stage, and power stage.
Single-Gang Master Volume: The 1960 Infinium utilizes a Post-Phase Inverter Master Volume (PPIMV). Curiously, the circuit design relies on a single-gang potentiometer rather than the dual-gang pot traditionally seen in heavy-duty boutique PPIMV mods.