DPX-1 Power supply

[Elmbeatz]

Hi all!

I searched the forum, but haven't found a matching thread, so...

Does anybody of you know of a (possibly new) substitute Power supply for the old Phihong PSA-523BU?

Mine once caught fire (common), but still worked afterwards.

Recently I noticed some ugly background noise coming from the dpx which, I assume, may be caused by the power supply.. I'm not sure though.

Best,
Elm.


P.S.: Does anybody know the specs of the old Phihong?

[gertie]

i was thinking of using a general pc psu, it may not fit the dpx so could look a bit ghetto, but they also have +5V, +12V and -12V

Output +5V DC 5A/6A Peak Yellow
             +12V DC2.5A/3.5A Peak Red
             -12VDC 0.5 A BR

some discussion on it here too
http://www.vintage-radio.net/forum/showthread.php?t=87739

[Elmbeatz]

HI gertie!

Thanks for your reply!

Yes, I've been done some browsing on that, too..

I was wondering, if a meanwell (see eII PSU discussion) PSU would work?

Considering the specs of the original phihong, I think the meanwell T-60B and RT-65B would work, wouldn't they?
Also, size-wize these could fit into the dpx..

Greetz,
Elm.

[ACEOFBASS]

Does anybody of you know of a (possibly new) substitute Power supply for the old Phihong PSA-523BU?

Yes.  Meanwell PT65-b
http://www.meanwellusa.com/webapp/product/search.aspx?prod=PT-65
This supply fits in the original Phihong enclosure, and requires only minimal soldering to swap the leads from the original to this newer supply.

P.S.: Does anybody know the specs of the old Phihong?

Yes.

[brian_ronn]

Does anybody of you know of a (possibly new) substitute Power supply for the old Phihong PSA-523BU?

Yes.  Meanwell PT65-b
http://www.meanwellusa.com/webapp/product/search.aspx?prod=PT-65
This supply fits in the original Phihong enclosure, and requires only minimal soldering to swap the leads from the original to this newer supply.

P.S.: Does anybody know the specs of the old Phihong?

Yes.

Hi

Have any of you tested the Meanwell PT65-b compatible with the Oberheim DPX-1?

My DPX-1 has blown twice within a couple of years. Therefore I would like a more solid PSU replacement.

Best regards

Brian

[ACEOFBASS]

Hey Brian.

Yeah.  I've used the this replacement powersupply in a number of my own and client owned DPX-1 units.  All of them are working flawlessly. 
You must connect the Meanwell PSU to a dummy load and trim the voltages before you install it. 
If you are not a trained electronics engineer, it's best that you have a qualified tech do the upgrade installation for you.

All the best,

ACE

[brian_ronn]

Hi Ace

Yes I can also confirm the the Meanwell pt65-b is compatible with the dpx1. I could not fit the Meanwell in the existing metal enclosure without pulling out the the power connector. I had to  solder the power directly onto the psu.