| 词条 | JJ Electronic |
| 释义 |
| name = JJ Electronic | type = Private company | foundation = {{Start date|df=yes|1993}} (Čadca, Slovakia)by Jan Jurco[1] | location = Čadca, Slovakia | industry = Electronics | products = vacuum tubes, capacitors, audio amplifiers | revenue = € 8.5 million (2015)[2] | net_income = € 3.8 million (2015)[2] | num_employees = 181 (2015)[2] | homepage = {{URL|http://www.jj-electronic.com}} }} JJ Electronic, s.r.o is one of the world's remaining producers of vacuum tubes. They are based in Čadca, in the Kysuce region of Slovakia. Most of the products that JJ offers are audio preamplifier tubes, and tubes for audio power amplifiers. These vacuum tubes are mainly used for guitar and hi-fi amplifiers. Technically, the vacuum tubes produced by JJ Electronic are mainly low-noise triodes, beam tetrodes and power pentodes. Double diode vacuum tubes for AC-to-DC rectifiers are also produced. JJ also produces electrolytic capacitors for higher voltage purposes, generally for use in audio amplifiers. JJ also manufactures their own line of high-end audio amplifiers and guitar amplifiers. In 2015, the company sales amounted to EUR 8.5 million and net income came to EUR 3.8 million. Most of the products are exported to the United States.[2] HistoryBefore 1989, TESLA was the main Czechoslovak producer of electron tubes. While TESLA vacuum tubes were exported all over the world, and were known for their quality, the company did not survive the change of economic system after 1989 in combination with the downturn in the vacuum tube market. JJ Electronic was founded in 1993, using the old TESLA machines for the manufacture of vacuum tubes. Eventually, JJ Electronic started to produce their own line of vacuum tubes and electrolytic capacitors, being mainly targeted at high-end audiophile and guitar amplifier applications. ProductsLow power vacuum tubes
References1. ^{{cite web |url=http://www.jj-electronic.com/en/company-profile|title=Company Profile|accessdate=29 October 2016 |publisher=JJ Electronic, s.r.o.}} 2. ^1 2 3 {{cite web |url=http://www.registeruz.sk/cruz-public/domain/financialreport/attachment/4990136|title=Annual Report 2015 |accessdate=22 July 2016 |publisher=JJ Electronic, s.r.o.}} External links
5 : Guitar amplification tubes|Manufacturing companies of Slovakia|Companies of Slovakia|Companies established in 1993|Vacuum tubes |
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