Power transformer requirement: 230V(110V)-0-230V(110V) group, the current is 180mA. Filament winding 0-6.3V two groups, 1A group, 5A group. 9V 1A set for decoding circuit.
eBay
Douk Audio HiFi Bluetooth 5.0 Vacuum Tube Amplifier USB DAC Stereo Receiver COAX/OPT Home Audio Digital Amp w/VU Meter 100W+100W
Aliexpress UK
P2 can be used as a tube preamp, connected between audio source and amplifier or active speaker to greatly improve the sound quality. Default 6K4 tubes, and can be directly replaced by 6J1/6J4/GE5654/6AK5/6*1n to enjoy HiFi sound of different styles. P2 can be used as a headphone amplifier, convenient to listen to lossless music alone or at night. The RCA and 3.5mm headphone jack can output at the same time to meet more needs. P2 can be used as a digital player with U-disk and TF card inputs, supporting MP3 and other lossless format such as APE, FLAC, WAV, WMA. No need for any driver, plug and play, convenient to enjoy fun even on the road or outdoors.
eBay
Douk Audio HiFi Bluetooth 5.0 Vacuum Tube Amplifier USB DAC Stereo Receiver COAX/OPT Home Audio Digital Amp w/VU Meter 100W+100W
Aliexpress UK
With 3 kinds of audio input(Bluetooth/USB/RCA) and 2 kinds of output(RCA/3.5mm headphone), P1 can be used as HiFi tube Preamp, USB DAC or headphone amp with HiFi clear, warm, dynamic, sweet tube sound, bringing extremely high-quality listening experience. Bluetooth 5.0 (QCC3034) supporting APTX-HD lossless transmission. PC-USB (CM6642) supporting 24bit 192KHz and compatible with Windows/Mac/Linux system, matching well with many audio devices such as iPod, Phone, MP3 players, TV, Blu-ray players, Echo Dot, CD players, etc. .
eBay
Douk Audio HiFi GE5654 Vacuum Tube Amplifier Stereo Bluetooth 5.0 Receiver Amp MM Phono Power Amp for Turntables APTX-HD 160W*2
Aliexpress UK
Fisher Model 500-C FM Stereo Receiver. The receiver works and sounds very good. It passes a signal in all inputs. FM sounds great as does the phono and other inputs. As you can see in the images, it is a bit dirty and in need of cleaning.
eBay
Juson Audio JTA50 RMS130W upgrade Integrated Stereo Hybrid Tube Amplifier DAC MVSILION BP1048P USB RCA Opt Phono Audio Receiver
Aliexpress UK
Unique and amazing combination: integrated ST-01/ST-01 PRO 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.
eBay
Juson Audio JTA100 RMS200W Integrated Stereo Hybrid Tube Amplifier BT5.0 USB RCA Opt Headphone for Turntables Audio Receiver
Aliexpress UK
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Nobsound HiFi Bluetooth 5.0 Vacuum Tube Amplifier USB DAC Stereo Receiver COAX/OPT Home Audio Digital Amp w/VU Meter 100W+100W
Aliexpress UK
Achieve Hifi music quality. 【Vacuum Tubes】T20X is equipped with 5654W Vacuum Tubes to get more warm sound. Applicable vacuum tubes model: 6K4/6J1/6A2/6J4/GE5654/6AK5/66 In vacuum tubes, etc. You can replace the vacuum tubes to DIY your stereo system.
eBay
AIYIMA Audio T9 Bluetooth 5.0 Vacuum Tube Amplifier USB DAC Stereo Receiver COAX/OPT HiFi Home Audio Digital Amp w/VU Meter 100W
Aliexpress UK
Model: T20. T20 Amplifier x1. HEADPHONE AMPLIFIER. BLUETOOTH AMPLIFIER. CSR64215 wireless Bluetooth 4.2 core support aptX low latency, Streaming range up to 39ft(12m), With Bluetooth and AUX selector, no pop when Bluetooth connecting;.
eBay
Juson Audio JTA100 200W Tube Amplifier Vacuum Valve BT5.0 Hifi Stereo USB RCA Opt Remote Phono Headphone 2.1CH for Turntables
Aliexpress UK