Illinois Reuse Machineries and Industrial Equipment Newsboad > Machine Tools
> TA7642 replaces MK484 ZN414 ZN484 single chip am radio
TA7642 replaces MK484 ZN414 ZN484 single chip am radio
TA7642 equivalent to MK484 AM Radio Detector
This is the latest version of this device now produced under the TA7642 and is a direct replacement to the MK 484
The MK484 AM Radio IC is a fully-functional AM radio detector on a chip. It is constructed in a TO-92 case, resembling a small signal transistor. It replaces the similar ZN414 AM radio IC from the 1970s. The MK484 is favored by many hobbyists. It is advantageous in that it performs well with minimal discrete components, and can be run off of a single 1.5-volt cell.
The output of the MK484 can be fed into the base of a transistor to provide greater amplification as a class A amplifier, however this is often an inefficient design. Conversely, the LM386 audio amplifier may be used to drive a small speaker.
Note that higher voltage is required if the LM386 is to be used. Therefore, small signal diodes (such as 1N914 or 1N4148) are recommended to create a voltage drop, as to avoid overvoltaging the MK484.
* Low cost: Rs 40 to 60 in Indian electronic markets
* Retails from 65 cents each on various websites
Thank you for looking, please take time to look at our other items
