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where the plate glows red. If this happe
where the plate glows red. If this happens, current through the fly- back increases dangerously, and damage can easily follow. Coupling capacitor C3, from the oscillator plate to the output grid, is a common troublemaker. Many sweep troubles start with this unit, and replacement is usually advis- able merely on general principles. Flyback transformer T1 develops high -amplitude pulses for the high - voltage rectifier. Damper V3 damps out secondary oscillations in the fly- back and, in conjunction with C2, develops the boost voltage. C2 usu- ally has a high www.americanradiohistory.com