High Dynamic Range Noise Blanker
Noise Blanker
Line Synchronous Noise Blanker - KA7OEI
3xFETs Noise Blanker
Noise Blanker with Timer
HF Noise Blanker - DJ7VY
Left / Right Revolution Counter (for tuning)
RF Activated Tone Monitor
PTT Delay Circuit - W3KKC
Ultrasonic Proximity Detector
Multi-Q Receive Loop Antenna
Low-Cost FSK Generator
Laser-Torch Wireless Communication
LNB 13V/18V H/V Switch
RX/TX 27 MHz Wireless Remote Control
Air-Speed Sensor for Cooling Fan
RIT for VFO Transceivers
S-meter 120dB Dynamic Range - DC4KU
Prevent Thermal Runaway for BJT Power Amplifiers
Temperature Compensation for X-tal Oscillators - I6MCF
Simple Dual-Gate MOSFET PLL
Interference Canceling Circuit - VK5BR
Cascode Amplifiers - JG1EAD
Sine to Square Wave Converter - Wenzel
VFO Temperature Controller
AM Detector / Squelch Circuit
1MHz-step Harmonic Marker Generator
S-meter 90dB 0-500 MHz - DC4KU
S-meter 120dB 9 MHz-IF - DC4KU
9 MHz and 455 kHz IF amplifier - DC6HCL
10 MHz - 1 MHz Marker Generator - OE2TZL
9 MHz IF Amplifier - DC4KU
Proportional Temperature Control for Gunnplexer - W4UCH
Temperature Fan Regulator for Power Supply
Lamda Diode with Two JFETS
Capacitance/Voltage Linearization for Varicap Oscillators
Realistic S-meter - DJ3NW
SSB Monitor - G3OGR
Using Collector/Base junction as a Varicap
Low Voltage Detector - W6WTU
TTL-DAC to Generate SAW Tooth
Rotary Switches Eliminator - WA2FPT
10dB Bridge-Tee Pad MOSFET
Bidirectional Amplifier
Shape CW Transmitter Keying
Fan Speed Temperature Controller - DH8AG
Temperature Protection - DH8AG
Smart-Squelch for SSB - W9MKV
Digital Mixer, Low Pass Filter, and x2 Multiplier
LED Morse Code Decoder
Optical LED Transmitter
455 kHz BFO and Filter for SW Receivers - WB4KTY
BFO for SSB-CW Short-Wave Receivers
Antenna BFO
Lightening Detector Switch - K2AWO
Coaxial Cables Technical Parameters
Effective-Noise-Temperature vs Noise-Figure
High-Linearity Mixer, Diplexer, IF-Amp
3-Tones Controlled Relay
Variable Delay Circuit
4-events Relay Sequencer - W6PQL
Two-Antennas Interference Canceling Circuit - VK8BR
