To minimize the pulling, a bipolar transistor and a FET connected in series are added to the RF stage of the circuit as shown in figure. It can be observed that the input is
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Get a quoteDetails of RF choke, inductor L1 and coupling RFC1 is used to block the carrier RF signal from transistor T2 and the power supply. The modulated RF is coupled to the antenna via capacitor
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Get a quoteDetails of RF choke, inductor L1 and coupling RFC1 is used to block the carrier RF signal from transistor T2 and the power supply. The modulated RF is
Get a quote6 days ago· 1:Power main switch. 5:DC output positive. 6:DC output negative. - Output current:30A (max). - Power:230V AC / 50Hz. Otherwise deal is final. Item Location. All
Get a quoteThe circuit''s block diagram is shown in Fig. 1. It consists of seven main sections: the tuning oscillator, the RF amplifier/mixer, the IF filter, the IF amplifier/detector, the audio preamplifier,
Get a quoteThe power supply consists of a 350-0-350 volt 120 m/A Transformer with a 4 volt winding for heating the receiving valves. There is also a 6 volt winding for the transmitter valve heater and
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Get a quoteThe RF transformer for coupling the RF and diode stages is a Wearite type "P" coil, for the next lower frequency range than the one in use in the aerial circuit, e.g., when using a PHF-4 in the
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