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6J1 Tube Amplifiers Board, Pre-Amp Amplifier Audio Board Tube Audio Amplifier HiFi Channel Class A Volume Control Tone Preamplifier Board Kit
Feature 1>.AC power supply signal amplification to remove noise 4>.The voice is naturally concerned,soft and sweet,quiet and transparent. Description Name Preamp Tube Amplifier Voltage AC 12V Current 800mA Supply Part AC 12V passes the rectifying and filtering voltage doubler circuit,and the positive and negative 28V output power supplies the tube with power. Processing Part the signal is buffered and amplified by the electronic tube and used for the power amplifier or the amp.The signal is a voltage signal and cannot directly drive speakers or headphones. Temperature Humidity Package Preamp Tube Amplifier Electronic tube Notes 

Price is $29.00
Price: $28.99