TESTED. 6N9S = 6SL7GT Tube. REFLEKTOR 1963, 70! QTY=1
TEST: Uh=6,3V, Ug1=-2V, U=250V, Ug2=250V.
№4 1970. Ia1=1,6mA, S1=1,52mA/V.
Ia2=1,9mA, S2=1,42mA/V.
№7 1963. Ia1=2,8mA, S1=1,72mA/V.
Ia2=2,8mA, S2=1,76mA/V.
Double triode to amplify low frequency voltage.
Weight 34 g.
• Filament voltage 6.3 ± 0.6 V
• Filament current 300 ± 25 mA
• Anode voltage rated 250 V
• Anode voltage limit 275 V
• Rated voltage grid -2 V
• Anode current 2.3 ± 0.9 mA
• The highest power dissipated at the anode 1.1 W
• Highest voltage between cathode and heater 100 V
• The highest leakage current between the cathode and the heater is 20 μA
• Steepness characteristics 1.6 ± 0.4 mA / V
• Internal resistance 44 kOhm
• Gain 70 ± 15
Advantages:
• the tube was originally designed for sound applications and
has a good signature;
• two triodes in a cylinder;
• high linearity;
• low level of microphone effect (although for input
cascades may require selection of tubes according to this criterion);
• wide use.
Condition.
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