Twin-T Sidetone Oscillator
Post-Mixer Amplifier
Post Mixer Amplifier
Junk Box VFO
RF Preamplifier
Varactor tuned 4 to 24 MHz preselection filter.
Varactor tuned 4 to 24 MHz preselection filter.
Varactor tuned 1 to 6 MHz preselection filter.
My attempt to design an op-amp that is flat from 100 Hz to 30MHz
WA!FXT Potluck BFO ver. 1.0
40m BPF
Audio Amplifier
Discrete IF
kenwood DFC230
2P Xtal Ladder Filter ver 1.1
Discrete broadband RF Amp
VFO using Bipolar transistor and mechanical variable capacitor
BFO buffer
active AF LPF (formerly said: keyer)
at-mel avr and multipig pll
Post-Filter IF Amplifier
Potluck Inventory Excel spreadsheet
An extremely stable VFO (2100 KHz) designed for 40 meters with a 4.9137 MHz IF
Discrete Audio Amp
BFO/Carr Osc and Buffers
Updated ExpressPCB.sch file of Potluck part library & specs
Class AB Audio Amplifier
High-Power ARRL Antenna Tuner for Balanced or Unbalanced lines
Discrete Product Detector Ver 1.1
expressPCB.com Schematic Capture reference file for the Potluck Contest
Potluck IF Amplifier Strip ver 1.0
Semi-Lattice IF Filter
Double Balanced Mixer
multiPIG+ Transmitter
multiPIG+ Receiver
multiPIG+ SWR Meter
miniPIG 10 meter CW Transceiver
multiPIG+ PLL
multiPIG+ FCC Control Schematic
Half Lattice Filter - variable bandwidth
A 40/30/20/17/15/12/10 meter phased vertical antenna system
multiPIG+ Band Pass Filter
multiPIG+ Low Pass Filter
Single-Balanced Mixer
2 MHz VFO and RIT for 40M rig
Modified Parallel IF Amplifier
Diode Product Detector
View individual circuits by clicking on description text or
Return to SEARCH