Jim Osburn, WD9EYB
Klunky Schematic Editor
Basic Operation Version
All of the pieces of Klunky
KPCB Printed Circuit Board Editor
VFO from 2001 ARRL Handbook, page 17.74, figure 17.78.
VFO from 2001 ARRL Handbook, page 14.20, figure 14.17.
Colpitts and Hartley Oscillators from 1948 ARRL Handbook, page 75, figure 3-22.
Annotated Colpitts Oscillator
Biquad Active Bandpass Filter Schematic
Biquad Active Bandpass Filter PCB layout
Warbler Home Page
U1 and associated circuitry, local oscillator,
transmit crystal filter
Transmitter driver and power amplifier
U4 and associated circuitry, T/R switching