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- Closeup of old germanium point-contact diode in sealed glass tube. Retro electrical component in transparent package with two yellow insulated wires on a blurry background with white bokeh. Electronics. Puzzle #525394034
Closeup of old germanium point-contact diode in sealed glass tube. Retro electrical component in transparent package with two yellow insulated wires on a blurry background with white bokeh. Electronics. Puzzle #525394034