Octave CAT

via this auction

“The original Octave Cat was a beast. Some features included a four-note sequencer patch, in which using the sub-oscillator on VCO-1 and the additional pulse, were allowed to form steps. Switching the sample and hold to VCO-1 could accomplish pseudo '4-step-sequencing' on VCO-2. More important than flashy tricks was the ease of use associated with Octave instruments. The machine was carefully and logically planned out, with ADSR and AR located on the upper left hand side (this arrangement allows for easy release or attack variations, which should be considered quite nifty). Unfortunately, the pitch bend slider seemed to be in poor review with many users (in the Cat's defense, the pitch slider is equipped with a "dead zone" in which any position 4 millimeters above or below the center hardly affects the pitch. This is probably achieved with the use of diodes). The original A-1000 of 1975 lacked voltage control, and had an external fuse. An updated version included CV control, but retained the external fuse. What I believe to be the final A-1000 revision places the fuse internally, and seems to be the most common of the A-1000 Cats. (Apparently VCO-1 has a different circuit design than VCO-2. It seems that VCO-1 has a better circuit design, so side by side comparisons will be made in the audio sample section.)
Three waveforms with two sub-oscillators offered a pleasing variety of waveforms and a ripping sound. Audio frequency pitch modulation was available, along with cross modulations of VCO-1 & VCO-2 and vise versa. Four envelope destinations along with the squirmy discrete A-1000 filter were enough to bring a smile to any synthesist of the era (a terrific November 1977 A-1000 Octave Cat ad can be seen here).
It is without doubt that the Octave Cat is a "special" synthesizer. Many mid to late 1970's synthesizers fit into this category as well (Crumar DS-2, EML Electrocomp 500, Powertran Transcendent 2000, KORG 800DV, Roland SH-1, Jen SX-1000, etc etc). These are the synthesizers that really never received the exposure of Arps and Moogs. The Cat has been considered a knock-off Arp Odyssey, and unrightfully so. Various sources claim that Arp took Octave Electronics to court, but the reality is that Arp dropped charges, and they were no strangers to "borrowing" ideas themselves. Comparing the Arp Odyssey to the Octave Cat is completely beside the point; they are both amazing instruments of the 20th century.
The Cat electronic music synthesizer has strong metal sliders. They feel very comfortable and precise. Unfortunately Arp opted for plastic sliders, which often feels stiff and hard these days. A good portion of the Cat is sliders, and perhaps 1/3 is knobs. The Cat is a synthesizer that rarely becomes boring, and new original sounds can always be developed. The actual sound of the Cat is unique as it is relatively indefinable, partly because no one has popularized it like the Minimoog.”

Text from- octavecat.homestead.com. The link isn't working for me. If anyone has any ideas, feel free to comment.