Posts Tagged ‘lm555’

555 Contest Entries (Jay – FightCube)

555 Contest Entries (Jay - FightCube)

Schematic

Schematic

Update 2:

The 555 board for the cradle swing is finished and installed.  For video proof check out this link:

A schematic is also posted above.

The headphone tube amp is also finished.  the high voltage for the tubes is generated by a 555 in astable mode driving a fet and a custom hand wound transformer. For video proof check out …..

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Dual 555 timer Iambic Touchkey Morse Code Signal Generator

Dual 555 timer Iambic Touchkey Morse Code Signal Generator

Well I saw this thing earlier today:

It’s a Vibroplex thing to make morsecode way faster

(20 to 50 WPM). If you push the small red knob it’s gonna send a continuous signal out of the line while on the other side,the oval paddle actuate a pendulum creating a series of shorts signals,or dits. This way,using the oval paddle you can easily …..

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