Tube radios repair technology

If you want to repair and build your antique tube radio, there are a description of the repair technology, spent the years.

• Disassembly of the chassis.
• Removing dust and dirt from the chassis and radio components.
• Cleaning the variable capacitor and lamp panels compressed air at a pressure of 6 atmospheres.
• Removal of dust and dirt inside the case.
• Checking all the resistors for signs of overheating.
• Replacing all paper capacitors.
• Replacement of defective electrolytic capacitors.
• Checking the status/replacement of rubber grommets (rings) on the chassis.
• Check the integrity of the insulation/replacement of damaged equipment wires.
• Test/restore reliability of electrical contact points of the chassis ground.
• Checking/replacing the power cord and plug.
• Test/restore reliability electrical contact sockets mains fuse.
• Replacing blown bulbs lighting scale.
• Replacing worn or torn thread vernier scale devices.
• Cleaning and lubrication of variable capacitors and other parts of vernier devices, as well as moving parts of switches and toggles.
• Cleaning the switch contacts.
• Restoring contact runners potentiometers adjust the volume and tone controls to eliminate cod when adjusting.
• Data Checking/replacement of vacuum tubes.
• Checking the power supply.
• Check Modes of electron tubes.
• Full customization of the radio-frequency path, paths of intermediate and low frequency.
• Checking the speaker cone for signs of damage, misalignment of suspension, the integrity of the voice coil and the exciter coil.
• Checking the insulation resistance of the power transformer using megohmmeter.
• Outdoor enclosure cleaning, key switches and knobs controls.
• Setting the chassis body.
• Run for several days.