The seven organs built during and following the 1980's were all analogue instruments, using frequency-
The two organs built for private homes were an attempt to produce a cheaper version of the highly successful church line, but using 4016 CMOS keyers instead of diode gates, and drastically reducing the number of filters involved. Another expedient on the score of cost was to have only a single frequency-
These two organs have operated very acceptably now for about 15 years. I now own the first of them, its original owner having died. Although there have been improvements which have been made or are pending, my many years of playing this organ have convinced me (even with my very fussy standards) that the basic design holds great promise for an instrument which can be made by enthusiasts at home (as this one was, totally), which is reasonably cheap because you use your own labour, but which has virtually unlimited capability for musical excellence of a very satisfying standard (admittedly a subjective assessment), and where the builder can actually voice it according to his/her own tastes (and without having to have esoteric technical knowledge to achieve this).
Although the commitment to frequency-
My plans include circuitry to insert appropriate wind noise along with the tones, together with improved starting transients. My practice of distributing the tones across a number of audio channels is also to be further developed. With all the organs so far, the sound comes from three separate sources as one plays across the keyboard. I plan to have each six notes across the keyboard coming from its own source, adding greatly to the quality of the sound.