Miscelaneus Circuits

• High Dynamic Range Noise Blanker
• Left / Right Revolution Counter (for tuning)
• Active Baluns - Differential to Single Ended
• Active Baluns - Single Ended to Differential
• RF Activated Tone Monitor
• PTT Delay Circuit - W3KKC
• HF QRP Manual Tuner - W6JJZ
• Ultrasonic Proximity Detector
• Multi-Q Receive Loop Antenna
• Phase Detector with Discrete Components EK47-Receiver
• Low-Cost FSK Generator
• Satellite Finder
• Electrostatic Detector
• HF Line Coupler
• 4:1 Broadband Transformers
• Noise Blanker
• Balun Transformers
• Helical Resonator Dimensions
• Crystal Filters Types
• Laser-Torch Wireless Communication
• LNB 13V/18V H/V Switch
• Modulation Circuit for SHF Beacon
• AGC with Squelch Control
• AGC with AM Detector
• Receiver AGC with hang threshold
• AGC / S-meter - PY2MG
• AGC Audio Preamplifier
• Glitch Detector
• 10 MHz SSB Ladder X-tal Filter
• 27 MHz - 40 MHz Lumped Component Diplexer
• 430 MHz to 780 MHz Tunable Filter
• 433 MHz Lumped Components Balun
• RX/TX 27 MHz Remote
• Air-Speed Sensor for Cooling Fan
• 3xFETs Noise Blanker
• Active RF Isolator
• Low Frequency Active Isolator/Circulator - Wenzel
• Antenna-Tuner for QRP
• RIT for VFO Transceivers
• 3.58 MHz CW Ladder Filter - N2DCH
• 90-degrees Phase-Shifter for IQ-modulation
• Power Combiners / Dividers - RSGB
• S-meter 120dB Dynamic Range - DC4KU
• Variable Bandwidth X-tal Filter - G3UUR
• Broadband Transformers
• Prevent Thermal Runaway for BJT Power Amplifiers
• Temperature Compensation for X-tal Oscillators - I6MCF
• 500 kHz - 30 MHz Antenna Tuner
• Variable Quartz Filter