X381: Difference between revisions
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The front panel has a Nixie display | The front panel has a Nixie display | ||
which is driven by a Fairchild 9960 decoder/driver IC. | which is driven by a [[Fairchild 9960]] decoder/driver IC. | ||
Within the X381, | Within the X381, | ||
Revision as of 07:27, 7 February 2020
The X381 is an experimental 560-series timebase plug-in. It appears to have used a 3B1 plug-in as a starting point.
The front panel has a Nixie display which is driven by a Fairchild 9960 decoder/driver IC.
Within the X381, there is an octagonal aluminum enclosure containing a backlit disk of film that is rotated by a front panel knob. The disk functions similarly to a quadrature optical encoder, but instead of generating just two signals, it generates several signals. There are human-readable numbers on the disk at each rotational position. These number are visible outside of the enclosure.
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backlit with flashlight for photo
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backlit with flashlight for photo
