EL84 TELEFUNKEN PDF

One day, in the middle of work time, a colleague entered my office to ask something and from the corner of my eye I glimpsed a man who was staring like hypnotized into an amplifier. While she was leaving, I called her out to leave the door ajar. The modest man in mid-fifties was turning and gazing like a little kid around a new toy. I went out to get to know him and have a chat.

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One day, in the middle of work time, a colleague entered my office to ask something and from the corner of my eye I glimpsed a man who was staring like hypnotized into an amplifier. While she was leaving, I called her out to leave the door ajar. The modest man in mid-fifties was turning and gazing like a little kid around a new toy. I went out to get to know him and have a chat.

Another tube freak and a new instant friendship. Word by word, and an invitation followed to visit him to review his system and listen to some tracks. I visited him a few days later. The wine was poured and, with the music and the first impressions of the system, his story began about a dream system that he had pursued for decades and that was still missing a nuance to reach the sonic nirvana. As a final point, he proudly showed me a couple of freshly purchased vacuum tubes, recounting all he was through and the thorny paths that led him to a pair of original balanced Telefunken NOS ECC The fresh, strong print on them and a quick look at the getter — in a split second, everything was clear as day to me.

I did not mean to be rude, so I told him that it seemed to me that maybe they were not original. He smiled winningly and turned off the preamplifier, poured more wine, carefully took out the tubes, turned them and pointed to the diamond bottom with a smile from tooth to tooth.

Usually people are pretty cheer after the second bottle of an excellent wine. This time it was not the case. After my short explanation why they were not genuine, supported by irrefutable facts, my host looked sunken. A serious man with a serious business was seriously nervous.

I felt a little sorry for him, so a few days later I invited him for a coffee near my company and gave him as a gift a pair of genuine DB Diamond Bottom — not NOS, but a low noise, balanced pair with lot of life. I have never been interested in sound just as sound, but in how the differences in the construction of vacuum tubes affect it. Examining all the details of internal construction of different tubes for the past ish years, I acquired a routine to assess in a few seconds the type and the manufacturer in question.

For most of other audiophiles, especially those with not-so-long path into tube rolling, that is a real enigma. Since several years ago, there is a cheap way to fake TFK embossed logo on the base of the tube using laser machines. Of course, the faking does not end at the ECC83, there is a plenty of room for other preamplifier dual triodes and output tubes and I will try to write specific articles for most of them when I find free time.

Telefunken is really one of the biggest brand among European tube manufacturers. For sure the biggest one with Philips Holland and, along with the Western Electric, one of the biggest ones in the world. Therefore, all the fame that accompanies DB ECC83 is understandable, and why they are so in demand even half a century after the end of production in Berlin and Ulm.

The variations in types and many tiny details, the early outsourcing of Telefunken, a great similarity with EI ECC83 tubes and the soaring demand for these real gems open a huge space for manipulation of resourceful resellers. If you want to buy something that has not been produced for half a century, something that has not even been talked about until years ago, you have to make a little effort and learn something before bidding and buying.

Smooth plates The smooth plates are more desired by audiophiles. They have been made in quite more versions than ribbed plates; hence, much greater attention is paid to them.

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EL84-TK Vacuum Tube

Return to the Home page. The 6BQ5 is a small beam power pentode vacuum tube. It is a finger sized tube, all glass, and has a standard 9-pin base like a 12AX7 with a large cylindrical plate structure inside. This tube is truly a mouse that roared, as it can handle 12 watts on the plate at volts, and volts on the screen at 2 watts!

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