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The circuit in Sams-54 is not a Synchroguide, If the set has the Synchroguide circuit, it is important to align it per the instructions. Typically, you short out the "sinewave" coil, adjust for synch with the hold control centered, then take the short off the sinewave coil and adjust it. The Synchroguide output has a distinct waveform, a sort of hump then dip and spike. The hump should be adjusted (via sinewave coil) to be slightly lower than the spike. The idea was to have a sharper rise time at the end of the waveform for noise immunity (to prevent false triggering). I'll see if I can find an example and post that.
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