Noise limiter and signal level control for electronic amplifiers

Claim 1

FOR AN AMPLIFYING CIRCUIT FOR MUSICAL INSTRUMENTS AND INCLUDING AN INPUT CONNECTION, AN AMPLIFIER AND AN OUTPUT CONNECTION, A REGULATING CIRCUIT COMPRISING A LIGHT SENSITIVE VARIABLE RESISTOR CONNECTED TO SAID AMPLIFYING CIRCUIT IN A POSITION TO VARY THE OUTPUT OF SAID AMPLIFYING CIRCUIT, A VARIABLE INTENSITY LIGHT SOURCE POSITIONED IN CLOSE MECHANICAL PROXIMITY TO SAID VARIABLE RESISTOR AND IN LIGHT TRANSMITTING RELATION THERETO, AN ENERGIZING CIRCUIT FOR SAID SOURCE CONNECTED TO SAID AMPLIFYING CIRCUIT TO BE ENERGIZED BY THE SIGNAL IN SAID AMPLIFYING CIRCUIT AND CONNECTED TO SAID SOURCE TO ENERGIZE THE SOURCE IN RESPONSE TO THE MAGNITUDE OF THE SIGNAL IN THE AMPLIFYING CIRCUIT, A CURRENT LIMITING RESISTOR CONNECTED IN SERIES IN SAID ENERGIZING CIRCUIT, A FIRST PATH CONNECTED TO OPPOSITE ENDS OF SAID RESISTOR, SAID FIRST PATH CONSISTING OF A FIRST DIODE AND A FIRST CAPACITOR IN SERIES THEREWITH, A SECOND PATH CONNECTED TO SAID OPPOSITE ENDS OF SAID RESISTOR, SAID SECOND PATH CONSISTING OF A SECOND DIODE AND A SECOND CAPACITOR IN SERIES THEREWITH, SAID FIRST AND SECOND DIODES BEING ARRANGED IN OPPOSITELY CONDUCTIVE RELATION, SAID FIRST AND SECOND PATHS CONDUCTING FREELY AROUND SAID CURRENT LIMITING RESISTANCE DURING THE INITIAL PORTION OF A LOUD SIGNAL, TO PREVENT LAGS IN THE ENERGIZING OF THE LIGHT SOURCE, AND A CHARGE LEAK PATH CONNECTED TO SAID CAPACITORS TO DISSIPATE THE CHARGES THEREON.