Hello all, I recently purchased a Bugera V55 infinium in a lot of damaged appliances at a local returns outlet. Obviously it is in non working condition. I powered it up and got the Bugera blinking light but no noise. Some searching seemed to suggest a tube issue. I changed a busted tube, and tested the others (all are now in good condition. Amp would turn on, no noise and the blinking light. Tubes were not getting warm in any of the above scenarios. I began testing the power supply from the outlet in and here is what I discovered. AC IN from wall (117.8 vac) Power transformer: Heater voltages: 1. Across the total winding (no center tap): 3.26vac 2. One lead to ground : 16.57vac 3. second lead to ground: 17.82vac High voltage: 1. Across the total winding (no center tap): 183.7vac 2. one lead to ground : 71.6vac 3. second lead to ground : 1.48vac Bias voltage: 1. Across total winding (center tapped) : 20.8vac 2. one lead to center tap: 10.5vac 3. second lead to center tap: 10.5vac The only one that conforms to how I understand how a power transformer functions is the bias circuit. I'm trying to determine if the transformer itself is blown. I did also check continuity between the windings: 1. Primary to secondary : No continuity 2. High voltage winding (total winding): Continuity 3. Heater winding : Continuity 4. Bias winding: Continuity Thanks for your time.