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Vacuum tubes shortwave power amplifier - inside view
In a well-equipped workshop, a man is seen professionally repairing a device, displaying his technical expertise.
Radio repair store, The Hague, the Netherlands - February 17 2024: old Philips radio tube vacuum valves on a light background
Unit control panel of electronic equipment, close-up
ECC83 (12AX7) Vacuum tube, isolated on white background.
Chart on an oscilloscope
Control monitor screen for electronic sound or analog acceleration sound device
Electric system with onboard charger module in Electric car
Old compact electromechanical one pole double throw and two pole double throw relays in the metal sealed casings on a gray background
Close-up view of the internal components of a vintage radio receiver, showcasing vacuum tubes, capacitors, light bulbs, dial drive and wiring.
Old cathode ray tube on white background.
RF testing instruments and equipment
Inside view of high frequency power amplifier with capacitors, coils and other components
Teenage Student in Technical Vocational Training
Empty nixie tube indicator isolated on white. 3d illustration
Ground or earth bar.
Obsolete red power carbon or green metallized resistors and black opto-isolators in rows. E-waste disposal. Eco
Old style meter and computer parts.  STEM
Vintage Electrical Vacuum Tube on Wooden Surface
Close-up of illuminated volume unit meter in recording studio.
Meter that is used to measure wattage and swr in a transceiver with a blue sine wave.
power plant console panel
SWR power meter analog - the concept of checking the power and parameters of the antenna, in the background a broadcasting radio station KF
These electronic panels are filled with buttons, dials, lights, and switches.  They occupy an equipment rack used for communications in an old government facility.
Electrical panel with wires and cables. Electricity equipment. Power line current in an electrical system control. Test installations on relay protection system in laboratory. Bay voltage control unit
Industrial equipment cable connectors
simple DC/DC converter and the switching pattern on the oscilloscope
Close up of old electronic circuits.
Nixie tube indicator. Empty and dot on  black background. 3d illustration
abstract waves
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