Phil Leigh;615492 Wrote: > Actually that PSU should have enough grunt to run a Touch (just - but I > wouldn't recommend it!)... but the ripple eater in its normal design > has a 650ma current limit based on a 1 ohm resistor in R12 - I think > this may be your problem. You would need to rip the current limiter out > and put an LM317 reg in front of the rest of the circuit...
Hi again Phil, I accept what you say above but it might interest you to know that the RE had already had the Current Limiter removed - not by me but by someone who knows what they're doing - and it didn't appear that the PSU did have enough grunt to run the Touch. I would be pleased to receive your advice on the following. I have another linear PSU with 4 outputs (again mod'd for audio use by another friend knowledgeable on such matters). Two of these outputs are 15v (so we can ignore them in this context, particularly as they are not connected to anything) but the other two are both a nominal 5v. They actually check out at 5.05 and 5.09v according to my cheapo MM. Leaving the RE out of the circuit I coupled one of these 5v outputs upto the Touch and got nothing. I then coupled both outputs together and fed the total output to the Touch and ....... Hey Presto, it powers up and plays and although it's very early days I think it plays better than with the supplied wallwart. Again the RE is not in this circuit. So can you advise whether combining a 5.05 and a 5.09v DC output which both originate from the same non-toroidal transformer but via seperate PCBs is electrically and audio-wise a safe thing to do? I plan to have a good listening session with it in this condition, unless you advise otherwise, and the put the RE back in circuit tomorrow and see what happens then. Thanks for any help. Cheers, Dave. -- DaveKen ------------------------------------------------------------------------ DaveKen's Profile: http://forums.slimdevices.com/member.php?userid=34139 View this thread: http://forums.slimdevices.com/showthread.php?t=86001 _______________________________________________ Touch mailing list [email protected] http://lists.slimdevices.com/mailman/listinfo/touch
