[sdiy] VCO IC's usage inquiry

[Scott Gravenhorst]

If you're going to use the 555, first, don't use the bipolar version, use the CMOS version instead
(7555) because the bipolar version hits the power supply pretty hard during pin 3 logic level
transition.  

If you're doing a sawtooth, there are probably better circuits/ICs.

ProwlerRaven32 at yahoo.com wrote:
>Content-Transfer-Encoding: 8bit
>
>11/09/2005
>I am constructing my own synthesizer and am using the 555 IC 
>Timer chip for my VCO's. Is it better to use the 555 or something 
>like the 741 or other op amps for a VCO ? 
> 
>Logan Mitchell Sr
>Baltimore MD USA
>
>		
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