Acoustic Guitar Amplifiers & Preamps / Preamps
Heater
Voltage (DC) 5V
Current value (DC) 1.2A
Maximum Ratings
UA480V
Pa40W
I know
With cathode bias 100 mA
Fixed bias 70 mA
Direct interelectrode capacitance
Enter 9PF
Output 4.3PF
Grid to board 15PF
Static parameters
Ua300V
60 volts
Current 60 mA
Voltage range 5.5 mA/V
ri0.7 thousand
3.85
Water output 6.6W
Typical operating parameters
Audio Amplifier
Category A1
Ua -Ug Ia RL Pout Second
Voltage Current mA Watts dB
200 42 30 2000 3 20
200 39 40 2500 2.6 26
250 55 30 2000 4.9 18
250 52 40 3000 4.0 26
250 50 50 2500 4.4 26
250 48 60 2000 4.7 26
250 48 60 2700 4.1 30
250 45 80 1500 5.0 26
300 65 40 2500 6.7 20
300 63 50 2000 7.2 21
300 63 50 3000 6.1 26
300 61 60 2400 6.6 26
300 58 80 1700 7.5 26
350 76 50 3600 7.8 26
350 74 60 2000 10.2 21
350 74 60 3000 8.3 26
350 74 60 4000 7.0 30
350 71 80 2200 9.6 26
400 91 40 5000 8.4 26
400 89 50 1000 11.5 21
400 89 50 4000 9.4 25
400 87 60 3500 10.5 26
400 84 80 2500 12.5 25
450 104 40 6000 9.5 26
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