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544: Difference between revisions
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The Type 544 is a 50MHz scope [[introduced in 1964]]. | The Type 544 is a 50MHz scope [[introduced in 1964]]. | ||
It has | It has one timebase. | ||
The timebase has several horizontal magnifier modes: | |||
x2, x5, x10, x20, x50, and x100. | |||
To make horizontal magnification usable, the 544 has a | |||
vernier horizontal position control in addition to the | |||
regular horizontal position control. | |||
The fastest calibrated sweep is 10ns/div. | |||
Some magnification modes provide | |||
sweeps faster than 10ns/div, | |||
but in those modes the horizontal scale is not calibrated, | |||
and a lamp on the front panel lights up | |||
to remind the operator of that. | |||
The 544 (at least the early ones) uses the same | The 544 (at least the early ones) uses the same | ||
[[tunnel diodes|tunnel diode]] triggering circuit | [[tunnel diodes|tunnel diode]] triggering circuit | ||