A television camera 1, wherein the time interval for said preamplifier to return to the unsaturated state following saturation in response to said picture signal peaks is further dependent on the stray capacitance between the gate and source electrodes of said FET, such stray capacitance having a value of {TAIL ~ several picofarads} and said diode having {HEAD ~ a stray capacitance} less than 1 picofarad; whereby the stray capacitance of said diode does not materially affect the time interval for said preamplifier to return to the unsaturated state 
A television camera 1 , wherein the time interval for said preamplifier to return to the unsaturated state following saturation in response to said picture signal peaks is further dependent on the stray capacitance between the gate and source electrodes of said FET , such stray capacitance having a value of { TAIL ~ several picofarads } and said diode having { HEAD ~ a stray capacitance } less than 1 picofarad ; whereby the stray capacitance of said diode does not materially affect the time interval for said preamplifier to return to the unsaturated state
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