Kit de preamplificador de tubo de válvula 6J1 placa montada fidelidad musical de audio 2 piezas

2pc 6J1 Valve Pre-amp Tube PreAmplifier Kit Assembled Board Audio DIY. Musical Fidelity is the mid-1990s introduced products. Excellent sound effects, cute and unique appearance, after the market caused quite a stir.

eBay