Moving the diodes in overdrive circuits.

[TimWaldvogel]

Let's say for instance I take tube reamer or ts808 circuit a do everything the same. All of it, except, I move the diodes out of the feedback loop and and them to ground to do hard clipping instead of soft clipping. Will this work with nic results? I most overdriveands are not gritty enough for me.
I love tones similiar to the ones in the Hyde/red led half of the jekyll and Hyde by visual sound. Can anybody make some experienced recommendations for a dual op amp circuit that would give me this?

[CynicalMan]

Let's say for instance I take tube reamer or ts808 circuit a do everything the same. All of it, except, I move the diodes out of the feedback loop and and them to ground to do hard clipping instead of soft clipping. Will this work with nic results?

It has been done before:
www.hollis.co.uk/john/omnidrive.jpg

[amptramp]

If you notice, the TS808 and all its derivatives have the diodes arranged in the feedback of a non-inverting amplifier.  When the diodes start conducting, the amplifier stage gain goes from high (as set by the drive control) to 1 for incoming signals.  If the diodes are between the output of the amplifier stage and ground, once the diodes conduct, there is no gain for the incoming signal i.e. the gain goes from high to zero.  In the former case, the incoming signal is still audible during diode conduction, in the latter case it is not, so the latter case will sound more harsh.