Artifact Details Title Printed circuit board Catalog Number 102728351 Type Physical object Description The board contains one transistor, one capacitor, and a number of resistors. The board has a round hole on the bottom right through which a thin plastic loop has been threaded. Manufacturer Philco Identifying Numbers Other number 32 Stamped in black on the component side Other number PHILCO 398-3963 Embossed on the component side at the bottom Dimensions overall: 1/2 in x 2 1/2 in x 2 in Category Component/circuit board