Hiend Audio, DIY, Hi-Fi, Stereo, Electronics site, for lovers of high-fidelity music reproduction. High-End Vacuum Tubes. Silicon. Do-It-Yourself Audio Systems. Schematics: amplifiers, speakers, horns, CD, DAC. Circuits, Topologies, Acoustics, Cables, Speakers, Voltage Regulators, Equipment Upgrades, Modifications, Problems, Solutions, Tips, Tricks. ------ Dla pasjonatów Hiend Audio, najwyższej wierności odtwarzania muzyki na sprzęcie budowanym, modyfikowanym samemu. Wiedza: elektronika, układy lampowe i krzemowe, wzmacniacze, głośniki, kolumny, tuby, DAC, kable, DIY, porady, sztuczki, problemy, rozwiązania, tor audio.

«

»

Jan 21 2014

Print this Post

PP2012 Hummmm Hummm Hummm …

Well, … I knew it.

He HAD to learn the HARD way.

Tubes have this tendency of humming and brumming,  hum hum hum, brum brum brum, … if you only let them.

Well, after the initial shock of the sheer volume of the hum – an ear breaking and quite deathening level, actually, my friend came back with the “issue” of … HUM.

That’s when I came with that infamous saying:  ” I told you so !”.

Get rid of that crazy yellow-black twisted pair, unshielded cable length that is happily running around over through half of the chassis, with no screen whatsoever, from the very input tube grid circuit to the unshielded RCA plug.

DO Something about it, because it is collecting all the rubbish from the air that you would not even imagine  !

So he did.

Now it looks like this ….

Mati brum 2 Mati brum 1 Mati brum 3Mati brum 4 Mati brum 5

Permanent link to this article: http://hiend-audio.com/2014/01/21/pp2012-hummmm-hummm-hummm/