[sdiy] VCO Linear FM input - DC or AC coupled?

ben gebhardt benjamin_gebhardt at yahoo.com
Mon Jun 26 20:37:48 CEST 2023


 Isn't this just the difference between phase modulation and frequency modulation?
    On Monday, June 26, 2023 at 02:33:08 PM EDT, bbob via Synth-diy <synth-diy at synth-diy.org> wrote:  
 
 In my main VCOs, I have a switch which enables or bypasses the DC blocking cap.
On Mon, Jun 26, 2023 at 1:35 PM Neil Harper via Synth-diy <synth-diy at synth-diy.org> wrote:

hey everyone,
i noticed some vco schematics have a dc blocking cap on the linear fm cv
input and some are directly coupled.

is there any advantage to either? AC coupled seems to block out the
possibility of really slow FM modulation with an LFO - or at least makes
the response not intuitive.. so I can't really see the point.


--
/// Neil Harper
/// Every Wave is New Until it Breaks

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