We found this preamplifier for the 10 and 11-meter range in an old documentation for radio amateurs. The integrated circuit used is uncommon today.
This circuit appears elsewhere in this section, but taken from other sources. This is an English...
August 2017 - Bourns Multifuse AEC-Q200 PTC resettable fuses can be obtained from Mouser...
This bistable circuit that drives a relay with a pushbutton was found in the March 1pp6 issue of...