Three boys and a man pose with electronics, including a vacuum tube voltmeter, oscilloscope and shortwave radio.

Three boys and a man pose with electronics, including a vacuum tube voltmeter, oscilloscope and shortwave radio.

Bibliographic Details
Published:
Online Access:	http://hdl.handle.net/2047/d20166040

Internet

http://hdl.handle.net/2047/d20166040

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