8 | Digit Led Frequency Counter Module Model Plj 8led C

Add a digital readout to an old Heathkit or Hallicrafters tube radio. Connect the counter to the local oscillator injection point. Program the IF offset (e.g., 455 kHz). The PLJ 8LED C will now show the exact station frequency on bright modern LEDs.

PLJ-8LED-C Power/Device VCC ------------- +5V DC GND ------------- GND IN A ------------- 1 MHz oscillator output (test) IN B ------------- RF source (e.g., 433 MHz transmitter module) GATE ------------- GND (1s gate) or NC (0.1s) 8 Digit Led Frequency Counter Module Model Plj 8led C