I am currently trouble free shooting an issue with my Bogner Shiva EL-34 Reverb Combo (Serial Number: 035056) alongside my technician. We are experiencing noise problems that appear to be coming either before the phase inverter or possibly within the reverb circuit.
The technician has already worked on shielding the pre-phase inverter tube, but the issue persists. Without a detailed schematic, it is challenging to determine the exact source of the noise. Anyone that provide a partial schematic covering:
1. The master section and beyond
2. The reverb circuit
The technician has already worked on shielding the pre-phase inverter tube, but the issue persists. Without a detailed schematic, it is challenging to determine the exact source of the noise. Anyone that provide a partial schematic covering:
1. The master section and beyond
2. The reverb circuit
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Please read the 'Sticky' at the top of the Introductions forum: