Abstract: Removable handgun slide mounts are presented including: a mounting plate; a dovetail mounting adapter sized to slidingly couple with a rear open sight dovetail slot of a handgun slide and configured to removably coupled with the mounting plate; and a rear slide mounting adapter sized to slidingly couple with a rear opening of the handgun slide and configured to removably couple with the mounting plate. In some embodiments, the mounting plate includes: at least two locating posts for locating a rear sight; at least one threaded hole for receiving a threaded screw to couple the rear sight with the mounting plate; at least one countersunk hole for securing the mounting plate with the dovetail mounting adapter; and at least one additional countersunk hole for securing the mounting plate with the rear slide mounting adapter.

Abstract: A ferrite core antenna having two spaced signal pick-up coils coupled through a transformer so that the signals from the two coils are additively combined in the primary of the transformer. A variable capacitor connected to the two coils tunes the antenna to selected frequencies. This results in amplification of the signal.

Abstract: A ferrite core antenna having two spaced signal pick-up coils coupled through a transformer so that the signals from the two coils are additively combined in the primary of the transformer. A variable capacitor connected to the two coils tunes the antenna to selected frequencies. This results in amplification of the signal.