Drive Requirements: 100 Watts PEP on SSB and 75 Watts on CW, AM and n m r IbLLI.ĬHAPTER 2 WARNING The L 7 has been designed incorporating several interlocks to prevent dangerous electricalshock. 2000 Watts PEP on SSB Plate Input: and 1000 Watts DC on CW, AM and RlTY. Non-amateur frequencies between 1.8 and 21.5 MHz may be covered with some modification of the input circuit. 1-1 Model L 7 Linear Amplifier SPECIFICATIONS Frequency Coverage: Ham bands 160 through 15 meters. The L7 uses 2 zero-bias triodes in a Class B gmunded-grid circuit configuration that utilizes RF negative feedback for lower odd-order distortion products. Non-amateur frequencies between 1.8 and 21.5 MHz may be covered with mdi5cation of the input circuit. Drake Model L 7 Linear Amplifier offers con.tinuoas 2000 Watts PEP on SSB, and 1000 Watts DC on CW, AM (controlled carrier) and RTFY operation covering the ham bands 160 through 15 meters. PLATE VOLTAGE AND PLATE CURRENT VS 1,000 WATTS DC INPUT POWER. DRAKE LINE OF COMPATIBLE EXCITERS VIEWING ANGLE OPTIONS. CONNECTING THE PS-7 POWER SUPPLY AND THE R. JUMPER CONNECTIONS FOR 240 VOLT OPERATION. LIST OF ILLUSTRATION'S Figure 1-1 MODEL L7 LINEAR AMPLIFIER 2-1 REAR CHASSIS CONNECTORS JUMPER CONNECTIONS FOR 120 VOLT OPERATION.
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