The switch is for whether there is 5v available on the joystick port, if not then you need to flick the switch and use an external power adapter. It's probably not a good idea to have the switch set to use the joystick and also apply external power... On 21/09/2022 12:38, smf wrote: > > https://www-forum64-de.translate.goog/index.php?thread/33239-seltsamer-mausadapter-oder-wie-oder-was/&_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=wapp > > On 21/09/2022 10:38, Richard Lagendijk wrote: >> >> Hi, >> >> I have a strange C64 interface device in my collection, and I have >> always wondered what it was. >> >> I opened up the device and drew the schematic and pcb of the interface. >> >> https://www.commodore-info.com/mix/item/midasonic_c64_inter_767b/en/desktop >> >> >> Does anybody know what kind of interface this is? >> >> RichardReceived on 2022-09-21 14:02:41
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