Russian Tube Preamp, No Return, Here I go again


I decided to risk it, Russian, no return. (he accepted my $400. offer, so $500. delivered).

https://www.ebay.com/itm/174498093168

Gives me tubes in my office system.

I just read something:

People don’t want advice, just confirmation

I’m not looking for either (this time), just thought some of you would find it funny and wish me luck.

I’m 72, it may arrive before my 75th birthday
elliottbnewcombjr
“Youth ages, immaturity is outgrown, ignorance can be educated, and drunkenness sobered, but stupid lasts forever.”

― Aristophanes
If Aristophanes said it,i never correct Einstein after all.... Only gloss around him...

Humility must be my mentor now..... 😁😊

I will not try to correct E=Mc 2

Rest assured....
two small potential issues:

Watch out for the gluing of the red board supports, watch for it breaking free. They appear to be glued to the bottom plate, which will flex. They may also be screwed from the bottom, difficult to know without seeing it.

next potential danger, the red colored supports themselves.

They appear to be 3d printed. the orientation of the print process means that the supports might break easily when presented with lateral shear accelerations. It’s a basic problem with all fusing and filament type 3d printing. Adhesion of the new layer.. to the one below is a problem (In the printing process itself).

In essence, do NOT plug this unit in when it arrives, without taking the cover off and doing a very close inspection, before trying to power it up.

Not saying it will fail, but it is being shipped from ’faraway land’, and there will be plenty of chances for sharp impacts upon the shipping container, and thus some fairly decent sharp shear inducing acceleration(s).

Edit: downloading the image of the internals.. seems to possibly..er..indicate.. that maybe the builder made printed molds for the support and then poured the supports as ’cast’ items, which would probably make them considerably safer for use in high voltage tube based gear. I say this as it seems to be quite difficult to see any 'layers' in what looks a lot like a 3d print job for those supports. using a printed mold to make cast parts tends to make the print layers a hair more difficult to see as a surface detail thing.


teo_audio

thanks for your advice, I often take stuff apart, just to see what sense of quality is apparent, I certainly will this time.

It shipped EMS this am, let's see how long it takes. Hopefully USPS will not hold it so long at the airport as they did with my Russian tonearm.
@ elliottbnewcombjr

everything will come with patience and waiting time.
With the covid problem everything has slowed down.
I waited 11 months by sea for a turntable to arrive from Japan (March 2020 / February 2021) between returning it back to seller for problems I don’t know and other time wasters, but then it finally arrived.
Patience and more patience.