|Manufacturer scans - All brands- database||
|Quick reference for main data, AMROH Book only|
|Tube decoding , small print etc|
visit our DIY FORUM!
|Tube Schematics with Lundahl transformers|
Tube Radio Schematics Heaven.
Radiomuseum Warning! Make good note, the site is not for free at all. You pay with your time and your energy. Member fee is high for what you are offered. At first you think: It works! Now I don't need to look at those cropped pictures any more. But my happyness lasted not very long. Extremely quick, my "points" were gone, and I got warnings to upload things, to get more "points", or else access will be restricted.
Already after downloading 12 schematics, I became a restricted member. "&%$"§!!!!
Now look, I was prepared to upload documents, but the upload software was not working. A very arrogant reaction came, when I asked the owner, Ernst Eib, from Switserland, for support. This man seems to have a problem with his Ego. He writes me: We have only a "help" file. If you don't find what you need, we will not help you by email or phone. If we loose somebody because of that, we loose somebody. So I say ok, please give me the money back. His answer: No, not after downloading 12 schematics. (from other members). So I lost the full member fee, for getting copies of 12 schematics, which others copied on his website for free. Very expensive, and ZERO service. Now this was really not very intelligent, because I have over 100.000's of schematics, only a fraction is published here. I can give him a few thousands. But no, he refuses to help me, as a matter of principle. Unbelievable. He writes me once more how stupid I an: "Find it out yourself, of forget it". He used my registration fee for 12 copies of some schematics. I have rsaved all those arrogant emails of him. It may be a typical reaction in the internet, when somebody knows you can't do anything against it. Well, but I post my opinion here. Be careful before sending money. Here I found a link from somebody with similar experience with Mr. Ernst Eib.
Anyway, here in 4tubes.com, schematics are for free.
|Pro Audio. (Tube Equalizers, mixers, compressors, ect)|
|Tube Schematics of Musical Instruments|
|Steve Bench Pages|
|ARTICLES, BOOKS, CATALOGS|
|Some very old articles, still worth reading|
|Lundahl Transformers AB||The ultimate tip in the internet. This small Swedish family company makes modestly and silently a whole range of unique audio transformers. Priced is in the middle range, but performance is top-class.|
|For the finest PHONO amplifiers from Japan, and wow.....a LOT more|
|Tubesusa.com||Most interesting KURASHIMA amplifiers. Mr. TOSHI from JAPAN builds his own tubes. (Yes Yes Yes!!!)|
|2A3 Maniac||German Text only. Einer der allerschönsten 2A3 Seiten im Netz.|
|Van den Hull||The makers of finest PHONO Cartridges|
|Audio Note KONDO JAPAN||We regret to inform that on January 8th 2006, Hiroyasu Kondo, founder of Audio Note Japan, passed away peacefully in his sleep while attending the T.H.E. SHOW audio show in Las Vegas. He is survived by his wife, Kazuko; his son, Yuji; and his daughter, Hisae. More...|
|Gyraf Audio||Excellent website if you are interested in tube audio compressors, and other studio equipment. With very nice DIY part|
|Tube CAD||John Broskie's Guide to Tube Circuit Analysis & Design. Take this site as it is, programs are for Windows XP only, and Email is not answered, but it's useful site anyway.|
No joke, Neil Styner shows how to make a working triode from with an alcohol flame, an no vacuum. He observed a power gain of 60x. If really so, this would have changed the early days of radio telegraphy a LOT. More...
For the solution, do this: Print the figure one, cut the pieces out with scissor, and then lay them on the second picture. You will be amazed that it works! Sill, when I did so myself, this lead me to the answer.
The next three pictures I have photoshopped:
Not photoshopped !
how a tube works
"As soon as someone can demonstrate the art of flying, there will be no shortage of human invaders on the moon, and Jupiter"
(Johannes Kepler, in the year 1610 in a letter to Galileo Galilei)