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SECTION lHow Guitar Amplifiers Work
Special Signal Circuits
The Power Supply
8 other sections not shown
a-c line a-c voltage ac/dc Ampeg amplifier stages audio B+ supply B+ voltage bass bias voltage bypass capacitor cable cathode cause chassis common connected coupling capacitor distortion driver stage electric guitars electrolytic capacitors Epiphone feedback filament filter capacitors frequency full-wave gain Gibson Model guitar amplifiers HARMONY MODEL input instrument jack KAY MODEL leakage load resistor megohms microphone musical normal ohmmeter ohms output transformer output tubes output voltage pentode phase-shift oscillator plate current plate voltage plifier plug power output stage power supply power transformer preamp preamplifier push-pull push-pull output replace resistance reverb reverberation unit schematic screen grid selenium shown in Fig shows signal voltage silicon sistor sound SOURCE SOURCE SOURCE speaker string supply voltage switch tone control transistor transistor amplifier treble tremolo oscillator trouble tube socket turn the amplifier typical vibrato voice coil voltage amplifier voltage drop volts volume control watts winding