Determine AM Modulation with an Oscilloscope
Use an oscilloscope to determine the modulation of an AM transmitter.
Tower Light Alarm Circuit
This pseudo-binary circuit allows a single remote-control telemetry channel to indicate several variations on circuit status.
Starguide Relay Logger
A utility to help diagnose contact closure and configuration errors for a Starguide broadcast satellite receiver. ZIP file.
StarGuide Relay Logger
A utility to help diagnose contact closure and configuration errors for a StarGuide broadcast satellite receiver. ZIP file.
FCC ID Number Lookup
Identify computer cards and other electronic components by their FCC ID number.
Tower Light Flasher Failure Alarm
A simple interface and flash-failure circuit to interface to a station's remote control.
SCA Primer for Broadcasters (2002 edition)
FM subcarrier services can be source of revenue for an FM station. They can also be a source of aggravation if not maintained properly.
SCA Primer for Broadcasters (2002 edition)
FM subcarrier services can be source of revenue for an FM station. They can also be a source of aggravation if not maintained properly.
Electrical Concepts and Practices - a Primer
A collection of articles from Radio magazine's sister publication EC&M.
Western Electric 111C and 119C Transformer Information
Pinouts and schematics for these popular, high-quality audio transformers.
Western Electric 111C and 119C Transformer Information
Pinouts and schematics for these popular, high-quality audio transformers.
Variation on the Shielded-Loop AM Antenna
A variation on the antenna’s construction.
Variation on the Shielded-Loop AM Antenna
A variation on the antenna's construction.
Electronic Symbols True Type Font
A True Type font set with electonic symbols.
Braided Shield Cable Preparation
A simpler, cleaner method of preparing a braided shield for a connector.
Braided Shield Cable Preparation
A simpler, cleaner method of preparing a braided shield for a connector.
Push-on/Push-off Switch
Turn a momentary closure into a maintained contact.
Baking Magnetic Recording Tape
Temporarily restore old tape for playback.
Baking Magnetic Recording Tape
Temporarily restore old tape for playback.
Push-on/Push-off Switch
Turn a momentary closure into a maintained contact.
Shielded-Loop AM Antenna
Build a shielded-loop AM antenna.
Lattice Combiner/Splitter
Build a lattice combiner/splitter.
Shielded-Loop AM Antenna
Build a shielded-loop AM antenna.
AES3 Passive Converters
Build passive AES3 balanced-to-unbalanced and unbalanced-to-balanced converters.
AES3 Passive Converters
Build passive AES3 balanced-to-unbalanced and unbalanced-to-balanced converters.
