[sdiy] clock problem

[Ken Stone]

Put a 1k resistor between the output of the clock and the jack. This will
protect the chip. (You should do this with ALL outputs.)

Ken

>i use a 555 timer as a master clock for my digital
>pattern generator modules (all CMOS +/- 15 V). the
>output pin splits into 4 jacks. problem is, when a
>cable is coming from one of these jacks and i go to
>plug the other end somewhere, when the tip touches the
>outside of the jack the clock stops momentarily. in
>fact, if i hold it there, the 555 will be damaged. i
>tried putting diodes on the outs, but then the other
>modules would not respond right. am i running the out
>to ground when the tip touches? how can i fix this? if
>i made a clock with discreet logic would i still have
>this problem?
>thank you, 
>daryl
>
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_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au  
Modular Synth PCBs for sale <http://www.blaze.net.au/~sasami/synth/>
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