Item Tag: AP-1D

Microphone audio pre-amplifier kit based on the LM1458 operational amplifier. Adjustable output level. Operates from single 9V battery. Perfect for boosting the level of a microphone to create a "power mic." Includes printed circuit board (PCB), components, and instructions. Specifications: operates from 5 to 9VDC * Distortion 0.2% * Voltage Gain of 10 * PCB Size 1" x 1.95" Rainbowkits are intended for advanced-beginners and up. The builder must be able to identify common electrical components and their markings. Minimal skill at soldering is required. All parts are factory tested. Once soldering has begun the kit is not returnable. Visit our eBay store for other radio accessories.