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556: Difference between revisions
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===CRT Circuit === | ===CRT Circuit === | ||
The CRT circuit of the 556 uses two HV transformers. | The CRT circuit of the 556 uses two HV transformers. | ||
The lower beam transformer, T1301, produces: | The lower beam transformer ([[120-1432-00]]), T1301, produces: | ||
* CRT anode voltage: +8150 V | * CRT anode voltage: +8150 V | ||
* lower beam cathode voltage: −1850 V | * lower beam cathode voltage: −1850 V | ||
* lower beam control grid (blanking) voltage: varies, about −2000 V | * lower beam control grid (blanking) voltage: varies, about −2000 V | ||
The upper beam transformer, T1351, produces: | The upper beam transformer ([[120-0433-00]]), T1351, produces: | ||
* upper beam cathode voltage: −1850 V | * upper beam cathode voltage: −1850 V | ||
* upper beam control grid (blanking) voltage: varies, about −2000 V | * upper beam control grid (blanking) voltage: varies, about −2000 V | ||