Okay, I know this dog has been mentioned a few times here, but I looked around and haven't found a schematic anywhere.
Here's the deal, I've got a Dano Sitar Swami, and I was playing with it today and shocked myself by actually getting a good convincing sound out of it. I didn't get a totally sitar sound necessarily, but I did cop some
very convincing mid-Eastern string tones. I found out the trick was to turn the guitar volume down a little bit so that the octaves didn't distort, and if you do that and turn down the Tone on the Swami, it totally sounds like you're listening to a Turkish station over a SW radio. With this kind of tweak, the swooshing sounds less like a bad attempt at drone strings and more like the swooshing you get on the aforementioned SW radio (anyone who's listened to foreign radio stations on an SW knows what I'm talking about). All that's needed after that, is the right playing technique to fake the mid-East style. I found myself jamming on some weird thing for a half-hour it sounded so sweet.
So, I'm saying people need to give this thing a second chance; it really has some great effects in it if you've got the skill and creativity to make it happen. This is the first time I really got serious with it on the guitar, but I used to use it on bass all the time for the wild stuff it would do. I pulled it out today to see if it still worked after living in the dank basement for a few years, and lo and behold, not only did it work, but I was able to really get some good mojo happening with it.
Which brings me back to my original statement; I looked around but haven't found a schematic for it anywhere. So, now I ask, would anyone here like for me to trace mine and draw up the schematic? I have no fear of SMD!

Oh, and it's not just a flanger like I've seen so many people say; it's a flanger with an octave down and octave up. The octaves distort and don't track very well
unless you turn the guitar volume down a bit - then it cleans up and sounds really cool.
If anyone is interested in the possibility of DIYing this impossible to get discontinued effect, let me know!