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Optical secondary emission amplifier, C61
Title
Optical secondary emission amplifier, C61
Format
photograph: negative
Description
Invented by William Shockley and John Pierce. Cylindrical shape, 14 contacts. Glass is broken. Mfg. RCA.
Quartz ultraviolet lamp, Life-Lite (2 views)
Title
Quartz ultraviolet lamp, Life-Lite (2 views)
Format
photograph: negative
Description
Serial no. 4502. Trapezoidal hand-held UV lamp, dark brown plastic housing with cord and cord switch, in black carrying box. Instructions inside box lid. Mfg. Ultra-Violet Home Products, Los Angeles, CA.