JJ Electronic
| Company type | Private company |
|---|---|
| Industry | Electronics |
| Founded | 1993 (Čadca, Slovakia)by Jan Jurco[1] |
| Headquarters | Čadca, Slovakia |
| Products | vacuum tubes, capacitors, audio amplifiers |
| Revenue | € 8.5 million (2015)[2] |
| € 3.8 million (2015)[2] | |
Number of employees | 181 (2015)[2] |
| Website | www |
JJ Electronic, s.r.o, from Čadca, in the Kysuce region in Slovakia, is one of the world's remaining producers of vacuum tubes. Most of the products that JJ offers are audio preamplifier tubes, and tubes for audio power amplifiers. These vacuum tubes are mainly used for the guitar amplifiers. Technically, the vacuum tubes produced by JJ Electronic are mainly low-noise triodes, beam tetrodes and power pentodes. Double diode vacuum tubes for rectifiers are also produced. Another important product of JJ Electronic are electrolytic capacitors for higher voltages, specifically designed for the use in audio amplifiers. JJ Electronic manufactures also 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]
History
Before 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.
Products
Low power vacuum tubes
- ECC81/12AT7, dual triode
- ECC82/12AU7, dual triode
- ECC83/12AX7, dual triode
- ECC88/6DJ8, dual triode
- 5751, low noise dual triode
- EF86, pentode
Power vacuum tubes
- 300B, directly heated power triode
- EL34/6CA7, power pentode
- EL84/6BQ5, power pentode
- KT66, beam tetrode
- KT77, beam tetrode
- KT88, beam tetrode
- 6V6, beam tetrode
References
- ^ "Company Profile". JJ Electronic, s.r.o. Retrieved 29 October 2016.
- ^ a b c d "Annual Report 2015". JJ Electronic, s.r.o. Retrieved 22 July 2016.