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555: Difference between revisions
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The 555 uses special horizontal plug-ins that contain the trigger and sweep. Early instances of the 555 came with the 21 and 22 horizontal plug-ins. Later instances came with the 21A and 22A horizontal plug-ins, which use tunnel diodes for triggering. | The 555 uses special horizontal plug-ins that contain the trigger and sweep. Early instances of the 555 came with the 21 and 22 horizontal plug-ins. Later instances came with the 21A and 22A horizontal plug-ins, which use tunnel diodes for triggering. | ||
* [http://bama.edebris.com/manuals/tek/555 555 manual on BAMA] | |||
<gallery> | <gallery> | ||