Warm Tips 

• Please note that the appearance of DIY KIT and Finished version are different, but the functions and circuits are the same.
• For safer and faster delivery, the transmitter does not include a battery(AA*4).
• The slight bending of the antenna magnetic rod has no impact on the use performance; the Antenna magnetic rod is easy to break when hit by external force, please handle it with care.
• When the radio is too far away from the transmitter (more than 1 meter), the effect will deteriorate.
• Increasing the supply voltage can increase the waveform amplitude, but will not change the actual available transmission distance.

Features

• Multiple interfaces: designed with waveform testing terminal, audio socket, external power socket, etc., easy to use and expand multiple functions.

• Good use effect: within the effective distance (0.5~1m), the sound fidelity is high, especially when listening with a direct vacuum tube radio and high resistance earphones, the sound quality is similar to the effect of direct playback by the player.

• Circuit design: double-sided board circuit, equipped with triodes and resistance-capacitance sensing elements, with a circuit board thickness of about 1.5mm, simple structure, suitable for learning working principles, practice, etc.

• Simple operation: no external antenna is required, and functions can be achieved by relying on magnetic rods; it supports to use an external power adapter, or 4PCS AA batteries to be used for the power supply.

Parameters

• Frequency response: 525~1605kHz
  
• Power supply: 6V
  
• Transmit distance: about 1m for superheterodyne, about 0.5m for Vacuum tube radio or Crystal Radio
  
• Net weight: 144g/0.31lb
• Package weight: 200g/0.44lb
• Dimensions: 86*78*50mm / 3.38*3.07*1.96in

Packing List

• 1*Finished Transmitter(optional)
  
• 1*DIY KIT(optional)
• 1*3.5mm Cable