1.b> .i> amplifyr> + -er I 1; 2.b> .i>, .i> ; a radio-frequency amplifier ; a 300 watt vacuum tube amplifier ; 3.b> .
2.b> .i>, .i> ; a radio-frequency amplifier ; a 300 watt vacuum tube amplifier ;
3.b> .
Developed by George Keretchashvili