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 Forum index » DIY Hardware and Software » Developers' Corner
Where to buy a triple output (5v/+15V/-15V) transformer?
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tysseng



Joined: Apr 14, 2013
Posts: 4
Location: Norway

PostPosted: Sat Sep 28, 2013 4:47 am    Post subject: Where to buy a triple output (5v/+15V/-15V) transformer? Reply with quote  Mark this post and the followings unread

I guess this cannot be the first time this question pops up, but I haven't found anything about it while searching.

Where can one buy a transformer with triple secondaries (5/+15/-15 V)?

I have a JP-8000 and just broke the input transformer (oh, the fun of forgetting that you are using a japanese synth in europe...).

The transformer has three separate secondaries, 5V and +/-15V and is rated at 21W (100V) to 28W (240V). Part number is 22455694U0 and it is originally produced by Bando. I have tried searching the web for anything similar, and have come up with two possible alternatives:

- Signaltranformer DMT-7-15 (http://www.signaltransformer.com/sites/all/pdf/MT-DMT.pdf)
- MCI transformer 4-07-7515 (http://www.mcitransformer.com/i_4-06_2.html)

Problem is, both companies (and even Digikey) require a minimum order of 25.

Any ideas about other vendors/places to buy these?

I could of course build a PSU from a twin secondary transformer, or buy a new triple voltage PSU, but it would be a lot easier to just replace the transformer.
--
cheers,
Joakim
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gdavis



Joined: Feb 27, 2013
Posts: 124
Location: San Diego

PostPosted: Wed Oct 02, 2013 3:32 pm    Post subject: Reply with quote  Mark this post and the followings unread

I was hoping you'd get an answer to this. I'm going to need a similar supply for the project I'm working on. I was looking for a transformer like this but wasn't having any luck which kind of surprised me.
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My synth build blog: http://gndsynth.blogspot.com/
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Faderpush



Joined: Feb 26, 2014
Posts: 1
Location: Australia

PostPosted: Wed Feb 26, 2014 4:14 am    Post subject: Reply with quote  Mark this post and the followings unread

Did you have any luck fixing your JP8000...what did you end up doing in the end?
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wackelpeter



Joined: May 05, 2013
Posts: 19
Location: germany
Audio files: 5

PostPosted: Wed Mar 12, 2014 11:29 am    Post subject: Reply with quote  Mark this post and the followings unread

if you have 230V AC Input in your transformer i would suggest you to ahve a look at this one: Traco Power TMP 15515C

230V AC Input
+5V DC and +/-15V DC

also another model with higher output current is available: TMP 30515

2 Versions exist one with small Chassis (the C Version) and another to be soldered on stripboard...


It's a bit late my reply but i hope that helps a bit...

don't know if they are available everywhere but here in Germany you can find them at the online store from Reichelt Elektronik
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