Analog synths offer some nice capabilities such as the ability to easily modify many sound parameters while the synth is being played. The one knob per function user interface costs a bit more to make but it is vastly more interesting to use compared to the 4 button/LCD interfaces found on so many modern synthesizers. The natural variability of analog circuitry is an added benefit to analog synths as long as you are content with the idea that things will never sound exactly the same twice. As for the spelling of analog and analogue, either one works for me, I use them interchangeably here.
What shreds your cones, makes wonderful drones, leaves digitoids in a fog? What weighs a ton and is oodles of fun? It's A-- na-- LOG! It's Ana-LOG, it's Ana-LOG, it squashes your neighbor's cat; It's Ana-LOG, It's Ana-LOG, it's better than thin, it's FAT! - Mike Metlay (Sung to The Log Song from the cartoon Ren & Stimpy)
A list of synthesizer literature
Modifications to the Pro-One synthesizer and some photos
Some VCO mods for the Pro-One and other Curtis based synths
A passive audio low pass filter for driving digital effects from analog synths
Ricard Wanderlöf's notes on variable oscillator syncing for CEM 3340 VCO chips
The Pro One manual online
The Pro-One schematics [pdf]
Wikipedia's entry on Sequential Circuits
Several of the tracks that I submitted to the compilation include sounds made with my UMI box and stereo panner circuits, more info is available on my FC's Music and Audio Circuits page.
Here are a few more of my synthesizer and music resources:
This page is a small part of SolOrb
You can contact me via Email.