Abstract: The present invention includes a holster for carrying a hand gun. The holster includes a body having a compartment for receiving a hand gun on its outer surface. A belt loop is provided on the inner surface of the body. A first tab and a second tab are joined to opposite sides of the body. The tabs include belt loops on their respective inner surfaces. The tabs are aligned on the body so that the belt loops of the first tab, second tab and body can simultaneously receive a belt. When worn, a trouser belt loop can be inserted between the first tab loop and the body loop, or between the second tab loop and the body loop, to prevent the holster from sliding with respect to a belt.

Abstract: A method and hum neutralization circuit for a grounded grid triode radio frequency amplifier in which the hum signal is detected and a portion thereof related to the amplification of the amplifier applied to the cathode to oppose, when amplified, in amplitude and phase, the effects of the hum signal on the output signal of the amplifier.

Abstract: A nylon fabric holster for hand guns having strap-like tabs secured together by hook and loop fasteners for holding the hand gun in the holster. The tabs may be separated by running the thumb between the hook and loop fasteners. However, the hammer spur associated with the hand gun is pressed against the inner surfaces of the tabs upon forcible withdrawal of the hand gun from the holster to prevent the tabs from separating. The tab construction thus prevents the hand gun from being forcibly removed from the holster when the tabs are secured together.

Abstract: A bullet resistant ballistic panel shirt-like carrier garment having interior front and rear pocket-like receptacles receiving flexible ballistic panels for providing protection against firearm projectiles to the upper torso of the wearer. The panels may be easily removed from the carrier garment, and the garment worn as a conventional shirt.