Project 48:
Breadboard Power Supply & Slow Clock

 v1.3 Schematic, Board Layout,  PCB Top & Bottom

(Click to enlarge)

v1.3 BOM

O'scope Photo

Overview:

A breadboard PCB power supply and slow clock for project development.

Features

PS:

 - Input 7v to 25v DC, 2.5mm jack, polarity protection

 - 5v/5A output

 - On/Off switch

 - breadboard alignment pins on input and middle of PCB

 Slow Clock:

 - Adjust speed via a potentiometer.

 - If you use a female header at position C7, then the range becomes variable: 1Hz to 500Hz with a 1uF cap, 7Hz to 5kHz with 100nF cap

 - Above we see a 59Hz square wave