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221: Difference between revisions
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One drives the top deflection plate, the other the bottom plate. | One drives the top deflection plate, the other the bottom plate. | ||
The power supply in the 221 uses | The power supply in the 221 uses three transformers.[[120-0876-00]] (T633) in the line inverter, 120-0877-00/120-0946-00 (T623) in the base drive for the line inverter and 120-0875-00 (T701) in HV inverter. | ||
The 221 contains one integrated circuit, a 741 opamp that creates a virtual ground, otherwise only discrete (including dual) transistors. | The 221 contains one integrated circuit, a 741 opamp that creates a virtual ground, otherwise only discrete (including dual) transistors. | ||