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TRIGGER_SHAPING_FOR_RETINA_WELDER
2014-11-08 19:59
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Trigger pulse, selected by S2, is compared to fixed bias on one half of comparator tube V9. Trigger shaping by V10 provides strong, sharp pulse for gating mvbr V11-V12A, which turns off diodes V14, allowing Miller integrator V13A and cathode follower V13B to start lime base runup that drivesC4 to 150V. Circuit then reverts to normal.-O. Rich, Jr. and R. V. Hill, R-F Spot Welder Reattaches Retina of Human Eye, Electronics,34:32, p 160-163.
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