Jag mailade Aleksandr Pyndyk som har sidan http://ealex.aqua-web.org och frågade om signalen som tunzes multicontroller / hans wavebox kort skickar ut och fick följande svar: Hello! No, it is much simpler, than PWM, it is analogue DC signal 0-8V. Regards, Aleksandr | Hello. | I was just wondering if you could tell me if the signal from Tunze multicontroller is | a PWM signal? | | The reason Im asking is that I found your DIY controller to the wavebox, and I | got an card whichs sends out an | PWM signal that I can tune a littlebit on, and want to use this controller if | possible on an Tunze Stream Electronic 6000 cirk.pump? | | Regards | Andreas ....Så om nån mer undrar så har ni svaret här /Andreas