• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

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That's actually pretty interesting, I almost want to make one, but considering I only have about 5 CD's these days, it'd be sort of useless.

I've never owned one myself. Nowandays I rip my CD's (the music I cannot get in a higher resolution format) with RubyRipper and save it as FLAC files, which I can directly play with a DAC. This gives a lot of flexibility, as well as eliminating the issue of jitter (although a buffered SPDIF would eliminate jitter as well).
 
I can go with that. Tube rec. for a CD player.

Yepp unbelievable but so true...tubes to sooth digital.😀..

You say in a cd player..but beware I am talking Transport Only here..(my dac is loaded with tubes)

" Only zeros and ones"....that sentence must come from non-listeners............

Tubes in the rectification circuit...once heard a clear nobrainer...:bigeyes::hbeat:................................:deer:
 
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Please tell us where could get this tips.
Bst RGRDS

What are those? Pieces of silicone tubing?

I haven't even owned a solder sucker for probably 20+ years. I just buy lots of desolder braid of various sizes 😀

They used to be used in test equipment before heat shrink became common and were also some industrial and cinema amplifiers in those days.

The part number on the bar code label should cross reference to a Newark part number as they come from there British agent for Newark.
H30X25 PINK - HELLERMANN TYTON - SLEEVING, 3MM, PINK, PK100 | Newark element14 US
That was easy wasn't it😀
There is also a fitting tool for them too.
 

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Thanks Sir for give a solution, the pliers, obviously, at least me, only for make a fast tracheotomy for put a laryngeal tube, but not for desoldering anything. The link, obviously is empty, but you show how the man's ingenious can help and how one pic can resume many words. Please accept my friendly regards for this Christmas time and please share with your friends and family the best auguries for the next year.
 
My second tube project.
"Test drive" in garage

Separate "power station" and 4x70w output.

An externally hosted image should be here but it was not working when we last tested it.

Very nice. I can not help but think that when my house lights dim a little, someone has turned on one of these amplifiers somewhere in the world.

Are you going to put bells on the transformers? And what does the power side of things look like?
 
the power supply is quite boring.

An externally hosted image should be here but it was not working when we last tested it.


Only three parallel-connected transformer, and bridge rectifier inside.
8-wire jumper cable and inside the amplifier enclosure is operating voltage filter and bias adjustments.

Maybe I build a transformer housings. I don't know yet.

Operating voltage are quite high. 485V.

I just studying on the internet rectifying tube structure.
It would lower the operating voltage and the power supply housing a better look.

Inside view

An externally hosted image should be here but it was not working when we last tested it.
 
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...but it's 4 channels.

I really like the power supply separate, though it could have been smaller unless there's a lot of filter capacitors & chokes inside. Just the physical separation distance is a good thing.

Please don't degrade the performance just to be able to say it uses tube rectifiers.