November 2015 Updates

New info on DIACs.

New Light Dimmers page under Electronics->Circuit Design.

New TRIACs page under Electronics->Components.

New Optical Isolators page under Electronics->Components.

A commonly used symbol for a standard optical isolator.

New SOT-89 Component Package page under PCB Design->Component Packages.

A 3D render of the SOT-89 (SC-62, TO-243) component package. Image from http://www.digikey.com/.

New Control Statements page under Programming->Languages->C.

New Tools section under Electronics.

New info on soldering flux.

The Javascript page was moved from under Website Design to under Programming Languages.

New Varistors page under Electronics->Components.

The schematic symbol for a varistor (a.k.a. voltage-dependent resistor, VDR).

Updates to the Ferrite Beads page.

Updates to the LEDs page (including the addition of section on pulse extending for LEDs).

The schematic for a LED pulse width extending circuit. It converts a short pulse that would not be seen into a longer pulse which is visible.

Updates to the SOT-363 Component Package page.

Updates to the Comparators page.

New Mouse Bites page under Electronics->PCB Design.

A four-hole mousebite on the side of a PCB.

New D-subminiature page under Electronics->Components->Connectors.

One of the most commonly used D-sub connectors of this era, the 9-pin female PCB-mount DE-9 connector.

New Headers page under Electronics->Components->Connectors.