Interesting stuff... What was the I/O Port of this device was it compatible with eg. the Amstrad SSA-1 synth? CPCLER 20:28, 21 October 2009 (UTC)
The DK'tronics was fixed to the address &FBFE and as far as I know (I never owned one) the SSA-1 used &FBEE. I still have the DK'tronics synthesizer and like to connect it now and again to my 6128 to remind myself of how easy I was to impress back in 1986 with sub-standard barely recognisable speech synthesis.