Acoustic Guitar Amplifiers & Preamps / Preamps
The beam power tetrode 6V6GT is a glass-sealed eight-pin tube with an anode maximum dissipation power of 12W, and is used for A1 and AB1 power amplification.
6V6-GT (6P6P) are similar and can be used interchangeably.
Hot wire heating
Uh......................6.3V
IH........................0.45 A
Interelectrode capacitance
Input capacitance .................................9 2.6 pF
Output capacitance................................0.7 0.7 pF
Inter-circuit capacitance .................................4 3.8 pF
Recommended working status (reference value)
Single tube A1 level amplification limit rating
Anode voltage................................315V
Second gate voltage..................285V
Anode power dissipation..................12W
Second gate power dissipation....................2W
Hot wire cathode voltage............±100 V
First gate resistor
Fixed bias voltage......................0.1 M
Self-bias voltage... ...
Working status
Ua........................180 250 315 V
Ug2........................180 250 225 V
-Ug1........................8.5 12.5 13V
üg (peak) ....8.5 12.5 13V
Ia(0)................................29 45 34 mA
Ia (maximum signal)............30 47 35 mA
Ig2(0) ................3 4.5 2.2 mA
Ig2 (maximum signal).........4 7 6 mA
Miles................................................50 50 80 k
Gm................................3.7 4.1 3.75 mA/V
Reflux..................5.5 5 8.5K
Ponte................................2 4.5 5.5 W
Total dryness................................8 8 12%
Push-pull AB1-level zoom
Working status (dual tube value)
Ua........................250 250V
Ug2......................250 285 V
-Ug1........................15 19V
üg (g1-g1.pk) .... 30 38 V
Ia(0)................................................70 70 mA
Ia (maximum signal) ..................................79 92 mA
Ig2(0) ................................5 4 mA
Ig2 (maximum signal) ..................................13 13.5 mA
Miles...................60 70 k
Gm................................3.7 3.6 mA/V
RL.................10 8K
Pouting.................................10 14 W
Total humidity........................................5 3.5%