This circuit for signals up to 30 MHz can improve your reception in the medium and short-wave band. We found it in the Radio Electronics magazine of February 1989.
This circuit used in tape recorders was found in an Electronic Design. The components support...
This circuit is recommended by Texas Instruments in the datasheet of the TL317, equivalent to...
CTS IoT Quartz Crystals Available through Mouser Electronics, CTS quartz crystals are especially suited...