RCA Chro-Bar Generator WR-502A Hermes knob replacement The lightweight makes it easy

The lightweight makes it easy to carry and store

5cm super slide 120/240 volts 60/50 c/s semi automatic stack loading projector

Can also be used for keeping liquids cold

This is a 1968 First American Edition

Weston Direct Reading selenium cell light meter in excellent operational & very good cosmetic condition

RCA Chro-Bar Generator WR-502A Hermes knob replacement The lightweight makes it easyRCA Chro Bar Generator WR 502A This is an RGB pattern generator used for testing televisions and monitors. This is a true professional instrument, it will generate color bars, dots, crosshatches, vertical lines, horizontal lines, and simple rasters. I've had it since 1970! It is battery powered and I removed the batteries so no corrosion and clean as a whistle on the inside.