I know that in 1977 they went to TOS master oscillator tone generation, which in a word was NOT professional. Now, please someone interject here with a correction if indeed the 805 Centura of 1974 used integrated circuits FOR THE TONE GENERATION ( NOT the ORBIT SYNTH, which is of course made up of several IC's). Not because it is loaded with features, but more so because it uses Wurlitzer's DISCRETE TRANSISTOR TONE GENERATORS. That said, the Century is certainly in this same category. A name which first appeared on the great Wurlitzer 4300 SPINET organ of 1964'. THE WURLITZER 805 CENTURA is a 1974 'WURLITZER PROFESSIONAL' organ. It's not a major annoyance, but does happen here and there, sorry:)
I type fast and often go back and add something, that's usually when the repeat happens and you then see a similarly expressed statement below it in the text. BELOW ARE MANY TIPS AND EXPERIENCES I'VE HAD WITH MY WURLITZER ORGANS THAT MIGHT BE OF HELP.