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The magnet bar coils need to be wound by yourself! With yarn wrapped and enamelled wire.Suitable for 2P3 case. Case not included! Batteries and speakers () are also not included.Important note: the sound of a single tube machine without an antenna or amplifier is too low! impractical!Small amplifier on the phone with input Bluetooth speakers or computer speakers can be used, the first debugging should be connected!And can only receive a few strong stations, so this kit is only suitable for DIY enthusiasts to play.After the completion of the effect of can not be achieved !Style:PortableType:FMcolor:BlackMaterial:plasticPackage Contents:1 x 2P2 electronic tube single light radio board kitOnly the above package content, other are not included.Note: Light and different displays may the color of the item in the a little different from the real . The measurement allowed is +/- 1-3cm.
DC battery 14500 lithium 3.7 and 9 volt supply, screen 9V. Screen current less than 0.5mA.
Lamp low block illuminated red LED 2.4V supply, current limiting resistor 150 ohms. LED current 16mA.
Filament 2.4 volt supply 7 pins , 1 pin negative, 5 pins empty. Filament current 30mA.
Kit Description. Potentiometer with switch and regenerative adjustment.
Transformer impedance conversion available after low resistance 8 - 32 ohms headphone . No transformer can be used to listen to high resistance 2000 - 4000 ohms headphones.