Transcription of HomeBrew RF Siganl Generator Colpitts FET Oscillator
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HomeBrew RF Siganl Generator Colpitts FET Oscillator
HomeBrew RF Siganl Generator Colpitts FET Oscillator William R. Robinson Jr. p1of 28 2008 All rights Reserved THE Oscillator V1 is Volts dc Purpose and Function Create a signal which can be amplified for use in an RF frequency Generator . Theory and Design I have lost the reference for this circuit o But very similar to the Colpitts in the 2007 ARRL1 C1-C2 and L1 form the Resonator circuit C3 provides coupling/ isolation to J1g Positive feedback is provide by the C2 J1d connection Many texts claim component selection is more black art than science using calculations 2 C1 C2 were picked by available variable capacitors with typical ranges of 30-110pf HomeBrew RF Siganl Generator Colpitts FET Oscillator William R. Robinson Jr. p2of 28 2008 All rights Reserved C3 was picked for best response Scope must be on 10x to keep from overloading HomeBrew RF Siganl Generator Colpitts FET Oscillator William R.
HomeBrew RF Siganl Generator Colpitts FET Oscillator William R. Robinson Jr. p1of 28 2008 All rights Reserved THE OSCILLATOR . V1 is 9.0 Volts dc
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