Position: Index > Power Supply Circuit >

20_METER_DIRECT_CONVERSION_CW_SSB

2015-03-19 19:22  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.


20_METER_DIRECT_CONVERSION_CW_SSB
Simple direct-conversion or synchrodyne receiver uses RCA CA3127E five-transistor array. Product detector follows 14-MHz RF stage. Low drain makes receiver ideal for battery operation, but circuit has no AGC. AF output will drive headphones adequately for strong 20-meter signals, but not loudspeaker. Local-oscillator energy at 14-14.4 MHz for product detector at 1.5-2 VRMS must be furnished by external BFO.-D. DeMaw, Understanding Linear ICs, QST Jan. 1977, p 11-15.