**** BEGIN LOGGING AT Thu Feb 05 02:59:59 2015
Feb 05 10:30:22 <ant_work> gm lumag
Feb 05 10:30:28 <lumag> hello ant_work
Feb 05 10:31:17 * lumag is slowly  pushing patches.
Feb 05 10:32:14 <ant_work> I'm still w/out linux...waiting for that darn mSata SSD
Feb 05 10:33:06 <ant_work> though I'm slowly catching up: seems Russell merged most of the patches in the tracker
Feb 05 10:33:24 <ant_work> so basically there will be only locomo-new to test
Feb 05 10:33:26 <lumag> and I killed /home partition few weeks ago. Most of the important pieces are now restored, but it still takes time and efforts.
Feb 05 10:33:31 <lumag> Yep.
Feb 05 10:33:57 <ant_work> ouch
Feb 05 10:33:57 <lumag> I hoped to push locomo to 3.20, but failed. Didn't have time to do all tests.
Feb 05 10:34:26 <lumag> Thanks to the work pressure and /home going away
Feb 05 10:35:24 <ant_work> I don't have serial port on that Thinkpad, hopefully we don't need hard debug anymore for a while...
Feb 05 10:36:16 <ant_work> (I do have one pc with serial @home)
Feb 05 10:40:54 <ant_work> I hope I'll not cook-up the poor laptop building OE...
Feb 05 10:51:34 <ant_work> hmm, regulators-full-contraints patches are still pending?
Feb 05 12:19:38 <ant_work> lumag: totally OT: how can it be one device has 3 wires-plug when initially it has only 2?
Feb 05 12:20:09 <ant_work> if I plug it in one way it makes audible humm
Feb 05 12:20:10 <lumag> mmm?
Feb 05 12:20:18 <ant_work> perfect silent in the other way
Feb 05 12:20:27 <ant_work> that beast  http://new-hifi-classic.de/forum/index.php?topic=5535.0
Feb 05 12:20:55 <ant_work> I bought used and it came with 3-plugs
Feb 05 12:21:08 <ant_work> (evidently hand-made)
Feb 05 12:21:46 <ant_work> on the service manual I see only 2 wires...
Feb 05 12:22:28 <lumag> Do you mean TS/TRS connectors?
Feb 05 12:22:33 <ant_work> power cord
Feb 05 12:23:02 <ant_work> I guess it can be some sort of mass-loop
Feb 05 12:23:12 <lumag> Maybe.
Feb 05 12:23:28 <ant_work> I have sebt that to JVC for repair, they reconditioned it but the cable was left unchanged...
Feb 05 12:23:31 <ant_work> *sent
Feb 05 12:23:49 <lumag> Maybe it's enhancement, not present in SM.
Feb 05 12:23:55 <ant_work> when I inserted it there was an audible buzz noise
Feb 05 12:24:14 <lumag> Or there was an enhancement in your original version.
Feb 05 12:25:05 <ant_work> hmm..
Feb 05 12:25:10 <lumag> Or somebody did some wiring.
Feb 05 12:25:57 <ant_work> heh
Feb 05 12:26:16 <ant_work> the service manual is 10mb, I'll show you just one pic
Feb 05 12:27:01 <ant_work> anyway the AC board was different for the areas
Feb 05 12:28:18 <ant_work> http://imagebin.ca/v/1qbaJEVurBTI
Feb 05 12:28:22 <ant_work> lumag: that one^
Feb 05 12:29:22 <ant_work> I don't see earth
Feb 05 12:29:53 <lumag> ground
Feb 05 12:30:33 <ant_work> ok ;)
Feb 05 12:30:39 <ant_work> itwas pre-IEC
Feb 05 12:30:54 <lumag> Just connect it to the closure or to the frame.
Feb 05 12:31:19 <ant_work> there are peole pretending all devices should be in electrical phase
Feb 05 12:31:20 <lumag> So not to internal ground (esp. not to the digital ground if there is one)
Feb 05 12:31:45 <ant_work> they measure the difference of potential on the chassis
Feb 05 12:32:11 <ant_work> there should be one physical reason about the wires of the transformer..
Feb 05 12:32:28 <ant_work> so that there is less dissipation in one sense of plug
Feb 05 12:32:32 <ant_work> myth?
Feb 05 12:32:37 <lumag> I don't know.
Feb 05 12:32:51 <lumag> I'm not a hi-fi specialist.
Feb 05 12:32:58 <ant_work> I can't imagine all the engineers were dumb...
Feb 05 12:33:01 <lumag> Neither am I a sound expert
Feb 05 12:33:25 <ant_work> i.e. the zaurus AC transformer emits a distinctible buzz
Feb 05 12:33:33 <ant_work> I'll try to swap the plug ;)
Feb 05 12:34:41 <lumag> There are people in Russia (and maybe all over the world) talking about 'training audio cables with right types of music' and 'copper power wires with optical cable inside to harmonize the 50Hz'
Feb 05 12:35:04 <ant_work> heh
Feb 05 12:35:20 <ant_work> I've heard about NOT reversing the cable...??
Feb 05 12:35:32 <ant_work> as if the electrons would matter
Feb 05 12:36:21 <lumag> From my experience with big iron and with sounding, all chassis should be grounded - so they should have the same electric potential
Feb 05 12:36:36 <ant_work> here I hear a strong noise so I guess there was some self-made wiring as you say connected to the frame
Feb 05 12:36:49 <lumag> I'd suggest to add one.
Feb 05 12:37:19 <lumag> (note - I'm not an electric engineer, so I'd suggest to consult with somebody else).
Feb 05 12:37:25 <ant_work> he he
Feb 05 12:37:32 <ant_work> thanks anyway
Feb 05 12:37:56 <ant_work> the rest of my '80 hi-fi as only 2 plugs on the cable
Feb 05 12:38:22 <ant_work> only the analog mixer has 3 but has also a switch for the ground-loop
Feb 05 12:38:35 <lumag> You might just connect chassis of all devices, not connecting them to the power plug.
Feb 05 12:38:48 <lumag> It might be  enough.
Feb 05 12:39:00 <ant_work> doesn't this already happen with the rca audio cable?
Feb 05 12:39:04 <lumag> No.
Feb 05 12:39:11 <lumag> Well. not always.
Feb 05 12:39:34 <lumag> RCA connects internal ground and it's not a thick wire.
Feb 05 12:39:49 <ant_work> I see
Feb 05 12:40:05 <lumag> Moreover there can be other devices between ground and RCA 'sleeve' part.
Feb 05 12:40:19 <lumag> Not sleeve. Circle
Feb 05 12:43:57 <ant_work> apparently the culprit is this only device
Feb 05 12:44:31 <ant_work> as it is it must be inserted in one sense
Feb 05 12:45:11 <ant_work> in the other I'm probably hearing ground (I learned is never 0)
Feb 05 12:45:48 <ant_work> sorry, not ground, electric plan ground aka neutral (blue here)
Feb 05 12:45:56 <ant_work> *electric plant
**** ENDING LOGGING AT Fri Feb 06 02:59:59 2015