Description
Russian electron tube 1579 double triode with separate indirectly heated cathodes, designed to amplify low-frequency voltage in radio engineering devices. Due to its clean and neutral sound, it has found wide application in the preliminary stages of tube amplifiers.
Equivalent to the 6SL7, 6SL7GT, 6SU7, 6N9S
Military acceptance stamp “rhomb”
Stamp of technical control department of the manufacturer “ОТК”
Technical specifications:
- Filament voltage: 6.3 ± 0.6V
- Filament current: 300 ± 25mA
- Anode voltage nominal: 250V
- Anode voltage limit: 275V
- Grid voltage nominal: -2V
- Anode current: 2.3 ± 0.9mA
- Maximum power dissipated at the anode: 1.1W
- The highest voltage between the cathode and the heater: 100V
- Maximum leakage current between cathode and heater: 20μA
- Slope: 1.6 ± 0.4mA/V
- Internal resistance: 44kOhm
- Gain: 70 ± 15
- The highest resistance in the circuit of the first grid: 500kOhm
Operating time not less than 1500 hours.
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