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Re: OT: clock for sequencer, flipflop vs. 555

2007-09-25 by sasami@hotkey.net.au

Wire up the 555 as a monostable, and use its output as your variable pulse
length.. You can then drive the 555 from any square wave clock and still get
a variable gate pulse length.
Forget about using a flip flop.

Ken

>Hi Folks,
>I am getting around to building the gate seq as an "analog sequencer".
>I am adding an on-board clock and have a few questions. I don't want
>to use a square wave because then the on and off times are the same.
>I need a variable on off clock.
>I think I can use a 555 timer with pots on R1 and R2 ( as seen in most
>digrams on the web) as a pulse with controlled clock. OR I could use
>a flip floop with two osc driving the data and Clk. inputs (cd4013).
>This would control the on and off cycle as well.
>
>anyone have a thought on which is easier or better? I want to be able
>to control the gate on and off times.
>
>thanks for any suggestions,
>Jeff
>
>
>
>The CGS Modular Synth home page: http://www.cgs.synth.net/
>
>Yahoo! Groups Links
>
>
>
>
_______________________________________________________________________
Ken Stone sasami@...
Modular Synth PCBs for sale <http://www.cgs.synth.net/>
Australian Miniature Horses & Ponies <http://www.blaze.net.au/~sasami/>

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