Obtained an assembled medium frequency radio kit.
After turning on the power for the first time, the radio did not work normally.
I tried soldering again by applying heat to the circuit parts again using an electric iron. It did not make a sound at first, but this time the sound was too distorted and came out small. Heat was applied to the PWB again and checked, but it did not operate normally. By applying heat to it again, the volume control variable resistor was malfunctioning and it was able to function normally. This time, step 1 adjusts the intermediate frequency to 455khz, step 2 adjusts the Tracking-frequency adjustment dial to the minimum to set the 525khz, turn the oscillation coil to adjust the volume to the maximum, and then turn the baricon (VC) to the maximum at 1605khz to adjust the TC. was completed.
By following the video, you can also adjust the IFT and Tracking of the radio.
Equipment preparation: plastic driver, DC power supply, signal generator, oscilloscope, analog circuit tester, resistor (0.2~1k), capacitor (500~1000PF) 1EA
5 окт 2024
