Author Topic: DS-5 Small Power Supplies (Read 2082 times)

jon_jackson · « **Reply #30 on:** June 28, 2012, 05:09:21 AM »

A Factory To Customer for the power supplies! Excellent!

Bradley Young · « **Reply #31 on:** June 28, 2012, 10:37:55 PM »

Just curious; this seems to only have one resistor, but the schematic from: http://club.alembic.com/Images/395/60881.html?1246843699

...has two. Also, the board seems to use diodes to construct a bridge rectifier, instead of a packaged one.

I promise to answer amateur programmer questions (I'm sure this is elementary stuff, but I'm not a hardware guy-- interested, but little time/too much ADD already) in return.

Bradley

terryc · « **Reply #32 on:** June 29, 2012, 12:47:54 AM »

Hand built byoung..hand built...no short cuts with Alembic

room037 · « **Reply #33 on:** June 29, 2012, 01:40:54 AM »

One register is used for power indicater LED on far left side of the front panel, that I think.
Two register for stereo-mono SW are mounted on the switch.

Eiji

(Message edited by room037 on June 29, 2012)

mica · « **Reply #34 on:** June 29, 2012, 01:59:28 PM »

Eiji is right, there's only one resistor on the PC card is for the LED, but there's another two on the switch. On a PC, it's quite easy to put in 4 diodes (and it takes up less room than the bridge). The bridge saved effort on the non-PC board version. On the DS-2, there were 4 diodes, but they were soldered to terminal strips and it was not fun.

I remember that there's folks that like to see the back too. If you've got one of these reserved, look for an email in the next few days with an invoice. Next week we've got vacations to work around, so the run will be started on July 9th. The only physical change is the switch, which is traditional chrome... we didn't want to wait until they show up next week to get the sample made.

sonicus · « **Reply #35 on:** June 29, 2012, 03:44:48 PM »

Mica ,_____ A work of Art! with a capital A !

Completely Swell ___

jseitang · « **Reply #36 on:** June 30, 2012, 12:04:32 PM »

SO FINE.

terryc · « **Reply #37 on:** July 01, 2012, 10:38:11 AM »

Nice neat units, obviously it will be better for Series owners to use one of these in conjunction with their rack units if they want to use other stand alone amplifiers eg at backline supplied venues.
Me..I shall just keep installing the 9 volters in my MK Signature

jazzyvee · « **Reply #38 on:** July 02, 2012, 02:11:07 AM »

I wonder if alembic have considered an external PSU for non Series basses?

Jazzyvee

jacko · « **Reply #39 on:** July 02, 2012, 04:23:00 AM »

I doubt if it's worth the effort Jazzy. My basses get fresh batteries once a year but the old ones have never crapped out on me. Even the LED batteries last longer than 12 months. I would imagine people playing more than once or twice a week may have to change more often but I don't suppose it would be too much of a hardship.

Graeme

xlrogue6 · « **Reply #40 on:** July 02, 2012, 09:49:01 AM »

The only time my battery has ever crapped out and killed the output was my one and only playing-on-a-float-in-a-parade experience, and of course it didn't matter because A: I was pretty much inaudible anyway and B: even if I was audible it was only for a few seconds. I've been more vigilant about checking my batteries since then!

sjhoffma · « **Reply #41 on:** July 02, 2012, 02:08:56 PM »

Magnifico! Can't wait till they ship!

sonicus · « **Reply #42 on:** July 02, 2012, 04:19:50 PM »

Jazzy, I think an external power adaptor for non-Series Alembic instruments is a marvelous idea, in fact I have already had that conversation regarding such. My idea was to use TRS jacks/cables on a non stereo non series alembic instrument to bring in 9 volts externally. if I remember correctly I was told that the modifications will vary from various models .This has actually already been done with some other active electronics instruments.

jazzyvee · « **Reply #43 on:** July 03, 2012, 01:42:48 AM »

The one of the many good things about the DS-5 is that the bass always gets the full power it needs each time it is used so will always be running at design capability. With less than brand new batteries you never know if you have full capacity at any time and although I don't recall ever having a battery go down on a gig, I have at home, and once they get to a particular level the drop into unusable distorted sound happens pretty quickly. Whatever solution I think would still need to allow the existing battery to be available as backup like in the series stuff and be cost effective which I think many come into your point jacko.

Shame there wasn't one added to this new DS-5... :-)

Jazzyvee

charles_holmes · « **Reply #44 on:** July 06, 2012, 03:22:07 PM »

gotta have one, I'm tired of taking mine in and out of my rack