[sdiy] 74HC14 inverter

[dave]

Hello Harry

Are you suggesting I do need a 5v source aswell ? and i connect the 
collector to the source via a resistor and to the trigger point directly 
? Or just connect the  collector to the trigger point via a resistor ? 
thanks alot for the infoup to now.
dave


harrybissell at wowway.com wrote:
> All you need to do is add a resistor from your 5V to the collector of the
> transistor in the circuit you referenced (below) and you will get the
> 5V to 0V that you need.
>
> You may or may not need the resistor. Moog had the pull-up resistor internal
> to the synth
>
> S (switch) trigger goes when a switch is closed to ground.
>
> I'd suggest a 1K resistor if you need it.
>
> You are on the right track now. I didn't see enough info in your
> original post to comment...
>
> H^) harry
>
>
>
>
> On Mon, 08 Sep 2008 15:24:04 +0100, dave wrote
>   
>> Hello
>>
>> It seems that I need +5v to 0v as a trigger. Would the 74HC14 enable 
>> me to do this ? I have also found a v-trig to s-trig converter : 
>> http://www.synthesizers.com/moog_trigger-convert.jpg Would I be 
>> correct in thinking this circuit would convert my 0v to +5v to +5v 
>> to 0v ? I am hoping that I dont need a continuos +5v and then pulses 
>> of 0v... I dont know How I wouldimplement that...Any assistance much 
>> appreciated regards dave
>>
>> dave wrote:
>>     
>>> Hi there People
>>>
>>> First time mailing here so go easy on me :) . Ive got a midi to cv 
>>> trigger pcb with +5v outputs and I need -5v or inverted pulse ( as far 
>>> as I understand it ) I have been recommended the 74HC14 hex inverting 
>>> schmitt trigger. Apart from powering the chip do i need anyother parts 
>>> ( resistors capacitors etc) apart from connecting the input of the 
>>> chip to the output of my cv trigger? Can I just use the output of the 
>>> chip to my trigger inputs on the device I am triggering ? Any helponn 
>>> htis would be greatly appreciated .
>>> regards
>>> dave
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>>>
>>>       
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>
>
> Harry Bissell & Nora Abdullah 4eva
>
>
>