Phil Leigh;615588 Wrote: > Dave, > the transformer on that PSU appears to be rated at 1.65VA? so at 5V it > can deliver 330ma on each secondary... > > For the Touch you need AT LEAST a 5x1.5 or 7.5VA PSU - preferably > larger. > > > IMO you need a much bigger transformer and more heatsinking than is > available on that PSU. > > regards > Phil
Hi Phil, Regarding your quoted comments above, can I re-refer you to my update in post No.14 above, the salient bit of which I quote below: - "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 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." I really would appreciate your comments on the above - please remember I'm a know-nothing numptie when it comes to electrics so NOTHING is obvious to me :-) . To update you further, this morning I have put the non-current limited RE between the above PSU and the Touch and everything is working fine - no excess warmth from the PSU or the RE so far. Thanks again, 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
