Are there any other trems out there with switchable waveforms?

[blues_mang]

Any other trem schematics with a switchable waveform besides the EH Pulsar? I'm looking to make one that goes from the smooth sound of the EA trem to a switchable square waveform that gives you that nice on-off chop. Anything?

[handwire]

4ms/Commonsound Tremulus lune there's info at www.commonsound.org and www.tonepad.com

[blues_mang]

Thanks hadwire, I forgot about the Tremulus Lune. I'll have to check it out.

[Paul Perry (Frostwave)]

If you want to design a continuously variable LFO shape, a method that has worked for me is to progressively increase the level of a triangle LFO fed to the input of a CA3080 set as an amplifier. (I woud use half a LM13700 now, since the 3080s aren't made anymore).
At low levels, the triangle goes thru undistorted, with increasing drive it gets flattened to a sine, then further and you have a square - with rounded shoulders, which helps avoid clicking!!
If you just want tri/square alternative, search around the LFO section - most LFO circuits have a square available somewhere.