VTG Optical scientific components W G Pye & Co & Precision Tool & Instrument Co

Unilab Science Kit

Unilab Scientific Educational Ultrasonic Transmitter Vintage

20th Century antique brass & black-japanned optical instruments components Lot

Unilab MFA LDR Sensor H29607 – Light Dependent Resistor STEM Module

Vintage Mixed Lot of Precision Resistors, NTC Thermistors, & High-Ohm Components

Denison LOXSWITCH L100W MTE Components Ltd IN BOX (LJ-103)