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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; External power supply is supported, and 4PCS AA batteries.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.