Ear834 clone psu: where?

[u/Ldarieut]

I would like to build a tube phono preamp, the ear834 looks nice and there are plenty of information and pcb (the black and gold ones) availables on AliExpress.

However, I can’t seem to find its companion linear psu board anywhere, the black and gold pcb that comes with the zero zone finished build.

Anyway, is a linear psu needed? A bare torroid with a 6.3v is enough for this kind of build?

[u/Conlan99]

I see you've already figured out the power supply, but if you're building one of these you should check out this great thread on Lenco Heaven on the subject.

[u/jafnvaegi → u/Conlan99]

I was just about to reply with this thread link haha. I built one before the LH compilation thread so like 15 years ago and at that time, it was easily the best phono I or my group of audio friends had heard (and we'd heard a lot prior to that point). We even had access to a production 384p to compare and Thorsten's changes are (subjectively) a noticeable improvement on an already great performing design. Then about 5 years ago I build this TRHL variant with PCBs and to me it's further refined, I've got no reason or need to look at anything else.

[u/CatNamedRIchard2]

I don't have an answer for your questions but DIY Audio Store has universal power supply boards that you can use.

[u/Ldarieut → u/CatNamedRIchard2]

Thanks! I just realized the psu board was actually attached to the ear clone pcb board. Bummer…

[u/CatNamedRIchard2 → u/Ldarieut]

Welcome. Why Bummer?

[u/Ldarieut → u/CatNamedRIchard2]

Me bummer for not realizing this from the picture and wasting everyone’s time.

[u/CatNamedRIchard2 → u/Ldarieut]

Missing something like that isn't that bad. I let the magic smoke out the other day and it was all my fault. That's what I would call a bummer..

[u/pigif62 → u/Ldarieut]

If you don't want the PSU section attached to the audio section, you can break it off. It's designed to be split if wanted.