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04/26/24 at 07:32:21

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Power supply of SE34I.2+ (Read 6353 times)

alper_yilmaz Seasoned Member Posts: 349	Power supply of SE34I.2+ 01/26/17 at 17:23:00 I posted this in the DIY Forum as well, but here it is more likely to be seen... Does anyone know what the power supply/ies of SE34I.2+ is/are? Steve mentioned this to me after I had smoke coming out of my unit, yet I cannot find that e-mail. Thanks... Alper
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Denizen

Verified Member

Posts: 41

Re: Power supply of SE34I.2+
Reply #1 - 01/26/17 at 21:01:55

Not sure exactly what info you're looking for but for voltages you should have between 300-320 VAC on the high voltage secondaries (the red wires) around 2.7 VAC on the rectifier filament and about 3.3 VAC on the tube heaters, these voltages all depend on your incoming house mains.

Other than that you can use a Hammond 272FX transformer for replacement.

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alper_yilmaz

Seasoned Member

Posts: 349

Re: Power supply of SE34I.2+
Reply #2 - 01/28/17 at 10:32:06

Hi Denizen,

Thanks for this. The issue is the amp is in istanbul, Turkey and therefore I have no chance to send it to Steve for a replacement. Quite a few nonths ago, a thick smoke came out of the unit and it turns out that one of the supply supplies is melted. A tech in Istanbul diagnosed
This and is asking for a huge number to custom-wound the supply. At the time of the incident, Steve had told me the brand and model of the power supply.

This would really help though. Thanks again.

Best,

Alper

Mac Mini
Audirvana
Rega RP6 w/ Ania Pro & Rega Fono MC MK4
Rotel RCD1070
Hegel HD30 & Copland DAC215
Fezz Audio Mira Ceti 300B, Decware SE84UFO25, Decware SE34I.2+ & Copland CTA405
ProAc D28, B&W DM630 & Rega RS1
Stein & BlackNoise filters
DH Labs cables

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Core32 Seasoned Member Posts: 1858	Re: Power supply of SE34I.2+ Reply #3 - 01/28/17 at 15:19:21 Quote: one of the supply supplies is melted Quote: a huge number to custom-wound the supply Are you speaking of the AC input power transformer? Or one of the output transformers to the speaker? That's the only thing I can think of that would need "winding".
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Denizen Verified Member Posts: 41	Re: Power supply of SE34I.2+ Reply #4 - 01/30/17 at 17:31:59 I see, then your mains voltage is 230 volts and you would need the Hammond 372fx transformer or the Edcor Em0755A, I do not recommend the Edcor though, the Hammond is a better transformer.
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alper_yilmaz Seasoned Member Posts: 349	Re: Power supply of SE34I.2+ Reply #5 - 02/06/17 at 21:38:17 Thanks again Denizen. Best, Alper
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