This is one of the semiconductor types. This part name is TA7642.
This product has AM radio IC functions. The package is TO 92 type.
Manufacturers of product is ETC.
Image and pinout :
The coil needs approximately 55 turns of 0.315 (30 SWG) of enamelled copper wire on a 100
x 10mm ferrite rod. A process of trial and error will help you achieve the optimum number of
TA7642 PDF Datasheet
Some of the text files within the PDF file
The TA7642 is an AM radio IC in a TO92 package which requires very few external components to make a complete pocket radio.
1. Low operating voltage – down to 1.3V
2. Low quiescent current – 0.2mA
3. Very few external components required
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Please refer to the file for details.