[sdiy] SSM2164 Phaser - another way?

[Donald Tillman]

On Feb 18, 2014, at 11:22 AM, Tom Wiltshire <tom at electricdruid.net> wrote:

> Neil said about 113Hz. I got something similar. Does that make a difference?

Nah... I was thinking of something without looking closely enough.  For this circuit your 2164 model is simply grounding the 30 K resistor.  So...

    1 / (2 pi 47e-9 30e+3) => 112.9 Hz

So yeah, that seems right.


> To be honest, the model isn't the problem, and fixing some variable-impedance effect that the model doesn't have isn't the solution. 

Perhaps there is no problem... like I said, I think the circuit will work.  Albeit accidentally.

  -- Don

--
Don Tillman
Palo Alto, California
don at till.com
http://www.till.com
650 888-9632