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555: Difference between revisions
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Tube layout of V-Amp stage
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An L-C [[delay line]] is between the vertical output amplifier and the CRT vertical deflection plates | An L-C [[delay line]] is between the vertical output amplifier and the CRT vertical deflection plates | ||
for each channel. | for each channel. | ||
12 x6DK6 tubes are used as main amplifier per beam, 6 each for the push and pull section. | |||
A pair of [[6DK6]] are used to pick up the trigger signal from the differential drive and pass it to Horizontal plug-in as single ended trigger signal via a cathode follower. | |||
Another pair of [[6DJ8]] are used as grid line driver cathode followers, fed by the [[12BY7]] input driver stage, which takes the differential input from Vertical plug-in. | |||
A pair of triodes out of [[6DJ8]]s are used as amplifier to drive beam position indicator neons near CRT. | |||
Architecturally, the 555, with its four plug-ins, is similar to the [[7844]]. | Architecturally, the 555, with its four plug-ins, is similar to the [[7844]]. | ||