7 pin tube seat apply for 6Z4 ，connect to 6.3V. 8 pin tube seat apply for 5Z3P/5Z4P/5U4G/5AR4,connect to 5V. C2: Try not to exceed 100uF.
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Use double 6Z4 tube rectifier bridge. Assembled board for reference：. Use of FET combined with regulator.
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Unique and amazing combination: integrated ST-01 amplifier with VU meter into whole in such a mini size, the pointer dancing in the warm light with strong vintage feelings when enjoy HiFi music, dynamically decorates the audio system space. HiFi clear sound with tone control: resonable circuit and concise wiring, adopts vacuum tubes to soften the sound and filter out the digital feelings, sounds warm and sweet without noise. Also with treble and bass knobs to adjust one's own preferable sound styles, presents HiFi music with rousing highs and deep lows.
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Nobsound Mini Bluetooth 5.0 TPA3116 Digital Amplifier Hifi Stereo Audio Receiver Power Amp 50W+50W Car Sound Amplifiers. Nobsound NS-01G Pro Mini Hi-Fi Bluetooth Power Amplifier. This is Nobsound's new power amplifier in 2022.
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With standard stereo RCA audio input, perfectly compatible with many audio devices such as phone,TV, MP3 players, CD players, DAC, computers etc.. With built-in preamplification circuit, can match well with audio source that with low signal output. Adopting classical TPA3116 IC chip in each channel, class D amplification, the max output power can reach 100W+100W(4Ω load), easily to drive all home bookshelf/ computer/ desktop/floor-standing/outdoor passive speakers. Reasonable circuit, concise wiring layout and perfect protection, no sparks no shock. With ultra-low distortion and dynamic balance, the sound is very smooth and natural, powerful in low frequency and delicate in high frequency.
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With standard stereo RCA audio input, perfectly compatible with many audio devices such as phone,TV, MP3 players, CD players, DAC, computers etc.. With built-in preamplification circuit, can match well with audio source that with low signal output. Adopting classical TPA3116 amp IC, class D amplification, the max output power can reach 50W+50W(4Ω load), easily to drive all home bookshelf/ computer/ desktop/outdoor passive speakers and match perfectly with them.
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Tube model：6X5 1 + ECL82 1 +0B2 1. Assembled Board:have solder it well ,Not included all tubes !
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(DC output plug +/- polarity:Inside +/Outside -. Conductor:Silver Plated conductor. 5Micro Gold Plated). GX16-2P TO DC 2.1 or DC2.5. Cable Length:Customized. Solder:With 3% Silver Solder. Technology:Air Shock Absoeber.Anti-static.
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