Universal amplified or non- amplified microphone Hi-Fi electret condenser upgrade kit. This will replace the original crystal or ceramic condensers that break down over time with a powered condenser that will provide crystal clear loud modulation. These will actually create a power mike swing with a non amplified mic. This kit will work on virtually any microphone however non-amplified mics will require mounting a 9v battery in the base of the mic to power the condenser. The battery connector is included with this kit. The kit requires basic solder skills for installation. The kit includes a prewired electret, two custom built mounting fixtures to fit any mic, a voltage regulator with backfeed protection capacitor, and shrink tube for insulation. It is very easy to install and comes with step by step instructions. These kits are fully tested before shipping and guaranteed to perform as described.

This kit is compatible with all microphones including Shure, Realistic, Cobra, Johnson, HyGain, Sears etc.

The kit is mainly intended for vintage desk microphones however it will work with hand mics as well providing there is ample room to mount a 9v battery internally.

 High fidelity (often shortened to hi-fi or hifi) is a term used by listeners, audiophiles and home audio enthusiasts to refer to high-quality reproduction of sound. ... Ideally, high-fidelity equipment has inaudible noise and distortion, and a flat (neutral, uncolored) frequency response within the human hearing range. 

I also have kits for Astatic D-104 mics as well as kits for all Turner models, please check my other auctions.

Thank you for looking, 73’sRoger