How would one make a delay with negative feedback?
Does anyone have an example?

Negative feedback

wouldn't multiplying the output of the delay line by a negative value invert the phase (isn't this what a negative feedback in a delay line is?)?

@whaleav you can skip the double multiplication by multiplying by the negative amount of feedback. If one wants half the amplitude negative feedback, just multiply by 0.5, instead of multiplying by 1 and then by 0.5.

@alexandros Thank you Alexandros....... that reminds me that I have a few huge patches that I should revisit and improve their efficiency!
David. 
Thanks.