Amateur Ra
di
o E
lectr
onic Design
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- Topics 1998 - 2002
- RF Preamps
- QRPHB Software
- Popcorn DC Receiver Mainframe
- 40 M popcorn Superhet Receiver
- Broadband Transformer Topics
- Crystal Oscillator Frequency Offsets
- Diplexer Topics
- RF Filters
- Ugly Construction
- Selected QRP Reading List
- Powdered Iron Torroidal Coating
- VFO Topics
- 30 M DC Receiver Experiment
- QRPHB Workshop Ideas
- Astable Multivibrator Circuits
- QRP Transmitters
- Discrete Component RC Audio Filters
- Wee Willy 75 M DSB Transceiver
- Tuning VFOs with a PN-Junction
- Funster 40 M Transceiver
- W7ZOI JFET Biasing Tutorial
- Miscellaneous Pictures and Circuits
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- Topics 2003 - 2005
- Voltage Probe RF Preamplifier
- EMRFD Review
- Tapped Cap Impedance Transformation
- WA7JHZ SSB 75m Transceiver
- Cascode 7 Superhet Receiver
- More Active Antenna Experiments
- Cascode BJT RF Amp Bias Experiments
- Miscellaneous Circuits and Ideas
- Fun with LEDs
- SWL Receiving Antenna Experiments
- Experimental Base Bias Tuned VFO
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- Topics 2006 - 2009
- Four Foot Electronics Lab by K3PRN
- Experiments with JFET Biasing
- TRF Receiver for WWV
- MF and HF SWL Receiving Antenna
- MF and HF Receive Antenna Splitter
- MF TRF Receiver
- Junk Box Low Pass NDB Filter
- More NDB Ideas and Circuits
- Low Pass Audio Filter Experiments
- My Guitar Oriented Home Page
- TRF WWV Receiver for 5 MHz
- More LED Projects
- Stacked Torroid VFO Experiments
- Complementary-Symmetry Amplifier Biasing Basics
- Low Power Audio Amp Experiments
- CMOS Logic Experiments
- Two Bravo Receiver Experiments
- Discrete BJT, Low Power Audio Amp Experiments
- More Discrete BJT, Low Power AF Amp Experiments
- ICOM IC-7200 Review
- Electronic Hobbyist Circuits
- VFO Experiments 2009
- Mike, KL7R Memorial Receiver
- Output of a Diode Ring Mixer in an Oscilloscope