ID 284551450 © Xbopoctehko | Megapixl.com
Sharing is not just caring, it's also about giving credit - add this image to your page and give credit to the talented photographer who captured it.:
unit technology instrument electronic tube tool valve equipment power object isolated technique old science signal retro control amplifier analog value anode apparatus electric cathode vector vacuum type radio engineering pentode audio lamp electron component obsolete circuit transmitter information industry industrial electronics tubes from military station generative content station