Reply 100 of 139, by matze79
This is anoying the Device runs alone very well, no problems...
As you can see:
i use a simple Amp:
Added 100nf and 10uf as deblocking.
Unfortunaly i did not paint a Schematic for now.
Only soldered on protoboard.
its combined with this Schematic:
Circuit is driven from 9V Lab Power Supply or 9V Batterie (For mobile usage)
VIA 7805 with 2x 100nf and 2x 10uf Deblocking on in and output.
As you can hear above, its working glad and has no issues on every computer i tried (at least 4)
Only one older Laptop is not working, LPT has not much driving Power and with 74HC244 added it works.