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read this one BEFORE start reading
If possible when I need an inexpensive solution I use this tubes, JJ Electronic from Slovak Republic. They are easy to find in many country and inexpensive. There is a warranty from sellers and also work well.
unfortunately, JJ's datasheets for all its valves are often only 1 or 2 pages from which one does not understand all the characteristics, not comparable with those from RCA, Mullard, Telefunken, Mazda-Belvu ...... |
I do not know the story of scissors from Tesla to Teslovak or KR and JJ when Check and Slovak make separation (without war !). I only know JJ stand for Jan Jurcho the establisher of factory after working for Tesla in research department. If some know the story I like to write all in this page.
Looking for I find this one: JJ Electronic represents a privatisation (in 1993) of the well-known Tesla manufacturing plant located in the Slovak Republic. JJ Electronic manufactures tubes on refurbisced Tesla equipment modernised with the latest technology. With over 25 years of experience in development and manufacturing of vacuum tubes, JJ electronic knows tubes. Their tube list is small but of high quality.
Story or not if I need a tubes or capacitor first look in JJ catalogue, second ask the jj Email system and if not find (unfortunately) looking for in other site.
In the last years at Universita' Degli Studi di Roma La Sapienza |
Dr. G. Visco already contract professor for Chemistry in Environment & Cultural Heritage into --> |
Corso di Laurea in: Scienze Applicate ai Beni Culturali ed alla Diagnostica per la loro Conservazione |