[sdiy] Triple Lockhart cascade (while we're on the subject of waveshaping...)

[Aaron Lanterman]

On Jun 3, 2009, at 11:44 AM, Steve Ridley wrote:

>> Hmmm ... On your png I count 1:3:9 cycles. Not seeing a problem.
>
> The output looks a lot like the output of a Serge wave multiplier
> (middle section).  The Serge had six stages, and used a different
> circuit to produce similar folding, so I guess a six stage Lockhart
> would sound the same...

Well, this triple lockhart thing has a lot more folds than the Serge,  
which has a fold per section.

OH! I just realized what was going on. Each of the Serge stages turns  
over at about a "diode drop" volts.

In the circuit I did in spice, I put in some gain between each stage.  
That's what's giving more folds.

- Aaron